H%26r Serial Number Dates

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The U.S. Carbine Caliber .30


U.S. Army Ordnance
Serial Number Assignments

Manufacture date for H&R Sportsman. Discussion in 'Firearms. YOu mite check with the guys on the Marlin lever gun sites,as Marlin bought out H&R, one of them may have a link for you. Gipper Here is what I have found for you on the date. The date is the Letter before the serial number. The H&R sportsman single action model 199. Home Series Serial Numbers Singer Sewing Machine Company Series Serial NumbersSinger Sewing Machine Serial Number Database. Singer Sewing Machine Serial Number Database When was my sewing machine made? What model do I have? Singer has recently pulled some of their dating and identification information from their website. Here you can look up. Startdate Required. A date that represents the start date. Dates should be entered by using the DATE function, or as results of other formulas or functions. For example, use DATE(2008,5,23) for the 23rd day of May, 2008. Problems can occur if dates are entered as text. Months Required. The number of months before or after startdate.




Serial Number Tables

Models M1, M1A1, M2
By Prime ContractorTable A
Numerical OrderTable B
Subcontracted Receivers Table C
Leftover Receivers used by WinchesterTable D
Transferred ReceiversTable E
Duplicated Serial NumbersTable F
Irwin-Pedersen, Grand Rapids, & SaginawTable G
Inland Mfg - Engineering & Presentation GiftsTable H
8 Million Serial NumbersTable I
Model T3T3
Model T4T4

Understanding Serial Numbers - Understanding Dates of Manufacture

Dating a carbine by its serial number alone is difficult and not always accurate given the circumstances inherent with manufacturing and the logistics situation during the time the carbines were manufactured. Some people estimate a carbine's date of manufacture by adding the quantities manufactured month to month to the assigned serial number blocks. This is not an accurate means of estimating the date the carbine was finally assembled or when it passed its final inspection.

Serial number blocks were assigned by the Ordnance Department on an as needed basis, generally in response to the awarding of a contract to a given manufacturer. Think of each serial number block as a separate contract. Contracts had a completion date but there was no requirement for completing one contract before starting another. There was no requirement as to using the serial numbers in order.

A few manufacturers used some serial number blocks out of order. Some of these blocks were split up and used before or after other blocks. Some manufacturers used more than one block in the same time frame.

A few of the manufacturers used subcontractors to manufacture their receivers. One manufacturer separated out smaller blocks of serial numbers for use by subcontractors who would use these serial numbers concurrent to receivers being made by the prime contractor and/or other subcontractors assigned lower or higher serial number blocks.

The serial number was placed on the carbine receiver during the manufacturing process of the receiver, not when the carbine was finally assembled. The decision for which receivers would be used for the U.S. Carbine Models M1 or M1A1, and some of the M2's, were made well after the receiver was completed as all of these models used the same receiver.

Serial numbered receivers that failed to pass inspection were set aside as rejects if the defect(s) could not be brought up to minimum standards. As solutions to old problems were learned, some of the same receivers were brought back online and completed (i.e. Inland receivers initially rejected because of an off spec deep hole drilled for the recoil spring and guide, later recovered and altered to use a detachable main spring housing). If a receiver was scrapped and not used, its serial number may or may not have been reused.

No documentation from Ordnance, or any of the prime contractors, has been found that indicates the date and serial number of carbines as they were assembled or when they passed final inspection. Given the high volume of production, receivers were generally assembled as part of a carbine within a few months after the receiver was serial numbered.

Barrels were a critical component in the production lines. If inventory ran out it could shut down production. Four of the prime contractors did not have the ability to manufacture barrels. The ebb and flow of mass production created parts surpluses and shortages for all the prime contractors, barrels included. Shortages were common until Ordnance arranged for additional barrel manufacturers.

During the first half of production the barrels were often mounted on a receiver within 1-2 months of when the barrel was made. If a receiver has its original barrel and the barrel includes a date, it may provide a general idea of when the barrel was attached to the receiver.

As time goes on more and more carbines are having parts replaced. Parts wear out, carbines are disassembled for the sale of the parts individually. Carbines have been, and still are, rebuilt from spare parts. Many people have reconstructed many carbines with what they believe should have been on the carbine when it left the factory.

U.S. Caliber .30 Carbine
Models M1, M1A1 and M2

TABLE A

Prime Contractor

Prime ContractorStartEnd
IBM3,651,5204,009,999
Inland15
11999,999
2,912,5203,212,519
4,879,5265,549,821
6,219,6896,449,868
6,629,8847,234,883
7,369,6618,069,661
National Postal Meter1,450,0001,549,999
1,937,5201,982,519
4,075,0104,432,099
...as Commercial Controls (1)001239
Quality Hardware1,550,0001,662,519
1,875,0401,937,519
4,432,1004,532,099
4,632,1004,879,525
Rock-Ola1,662,5201,762,519
4,532,1004,632,099
6,071,1896,099,688
6,199,6896,219,688
Saginaw (S.G.)3,250,0203,651,519
5,834,6196,071,188
Saginaw (S'G')/Irwin-Pedersen1,762,5201,875,039
3,212,5203,250,019
Standard Products1,982,5202,352,519
Underwood1,350,0001,449,999
2,352,5202,912,519
4,010,0004,074,999
6,099,6896,199,688
Winchester610
1,000,0001,349,999
4,075,0004,075,009
5,549,9225,834,618
6,449,8846,629,883
7,234,8847,369,660

TABLE B

Numerical Order

StartEndPrime ContractorNotes
15InlandToolroom Models (2)
610WinchesterToolroom Models (2)
1199InlandEngineering (3) & Experimental (4)
100999,999Inland(see Tables C, E, F)
1,000,0001,349,999Winchester
1,350,0001,449,999Underwood
1,450,0001,549,999National Postal Meter
1,550,0001,662,519Quality Hardware
1,662,5201,762,519Rock-Ola
1,762,5201,875,039Irwin-Pedersen/Saginaw (S'G')(see Table G)
1,875,0401,937,519Quality Hardware
1,937,5201,982,519National Postal Meter
1,982,5202,352,519Standard Products
2,352,5202,912,519Underwood(see Tables C, D, E)
2,912,5203,212,519Inland(see Table C)
3,212,5203,250,019Irwin-Pedersen/Saginaw (S'G')(see Table G)
3,250,0203,651,519Saginaw (S.G.)(see Table G)
3,651,5204,009,999IBM(see Tables C, E, F)
4,010,0004,074,999Underwood
4,075,0004,075,009WinchesterWinchester gift guns
4,075,0104,432,099National Postal Meter(see Table C)
4,432,1004,532,099Quality Hardware (UN-QUALITY)(see Table C)
4,532,1004,632,099Rock-Ola
4,632,1004,879,525Quality Hardware
4,879,5265,549,821Inland
5,549,8225,549,921not assigned
5,549,9225,834,618Winchester(see Tables D, F)
5,834,6196,071,188Saginaw (S.G.)
6,071,1896,099,688Rock-Ola
6,099,6896,199,688Underwood
6,199,6896,219,688Rock-Ola
6,219,6896,449,883Inland
6,449,8846,629,883Winchester
6,629,8847,234,883InlandModel M1 & Model M2
7,234,8847,369,660WinchesterModel M1 & Model M2
7,369,6618,069,661InlandModel M2
higher s/n's(post WWII)(see Table I)

(1) leftover carbines offered to Ordnance after a company name change and completion of the NPM contract
(2) Toolroom Models: Pre-production carbines to test and finalize drawings for mass production
(3) Engineering Models: Pilot models made from Engineering Drawings
(4) Experimental Models: alternate designs experimenting with ways to reduce the time and cost of production

Notice

H%26r Serial Number Dates

Tables C - F

Documents found in the past have identified several prime contractors who assigned subsets of their serial numbers to their subcontractor(s). Data collected over the years has sometimes conflicted with the information in these documents. There are a variety of reasons things may have been changed or simply ignored.

Rather than assume the documents were followed to the letter, the serial numbers in tables C-F are presented with the lowest and highest reported to date. We would like to encourage you to share information you may have that will help reconstruct what was actually done versus planned. If you choose to do so please contact us using the forum.

TABLE C

Subcontracted Receivers

(also see Table E)

LowestHighestPrime ContractorCodeSubcontractorNotes
700,126 709,449 Inland SI Saginaw S.G., Saginaw, MI(also see Table E)
707,298 938,380 Inland SG Saginaw S.G., Saginaw, MI(also see Table E)
940,600X 950,919X Inland SG Saginaw S.G., Saginaw, MI(also see Table F)
2,352,521 2,400,080 Underwood T Intertype Corp.(also see Table D)
2,452,638 2,491,453 Underwood W Universal Windings (also see Table D)
2,572,558 2,601,955 Underwood S United Shoe Machine
2,625,041 2,682,871 Underwood B Singer Mfg (also see Table D)
3,152,529 3,199,190 Inland SG Saginaw S.G., Saginaw, MI
3,835,477 3,907,689 IBM AO Auto-Ordnance s/n's intermixed w/IBM s/n's (also see Table E & F)
4,325,227 4,387,735 National Postal Peter U Union Switch & Signal the U is different than Underwood ·U·
4,432,255 4,466,225 Quality Hardware UN-QUALITYUnion Switch & Signal

TABLE D

Leftover Receivers used by Winchester

H 26r Serial Number Dates For Sale

Underwood had receivers in various stages of completion left over when their contract ended. These receivers were purchased by Winchester.
What followed was not always consistent and sometimes varied. The information that follows has been reconstructed from the data collected so far. It is not unusual
to find a receiver that doesn't fit these criteria. The focus at Winchester was meeting production quotas during a time of high demand.
    - Underwood receivers that had not yet been hardened:
      Winchester removed the Underwood name and serial number, then replaced them with the Winchester name and serial number.
    - Receivers that retained the Underwood name:
      Winchester sometimes lined out the Underwood name, sometimes not.
    Winchester added the letters W A or A W to the bevel of the receiver.
      - If the receiver had an Underwood subcontractor code, the subtractor code was left in place between the W A or A W.
      - One or both of the letters of the W A or A W code may be difficult to see. Some have been reported with only one of the
      two letters or in combination with an Underwood subcontractor code.
      - The significance of the letter A is unclear.
LowestHighest InfoCode
1,244,6971,290,339Underwood name removed, Winchester name & s/nA W
2,38x,xxx2,404,928Underwood name not lined out, Underwood s/nWTA
2,485,1252,491,867Underwood name not lined out, Underwood s/nWwA
5,759,1xx5,801,924Winchester name, Winchester s/nT
5,814,7985,820,062Underwood name removed, Winchester name & s/n A W
6,461,4796,482,225Underwood name lined out, Winchester s/nA W, W A
6,473,811 ?Underwood name lined out, Winchester s/nNo Code
6,497,1536,614,551Underwood name lined out, Winchester s/nB, BA, ABW, BW

TABLE E

Transferred Receivers

Ordnance required the name of the prime contractor to be defaced by a single narrow horizontal line. The
identification mark of the receiving facility was to be added at the rear of the serial number.

Serial numbered receivers transferred were not restricted to a certain block of serial numbers. Some were sequential but many were not.

LowestHighest InfoCode
126,794 127,006 Inland s/n'd receivers sent to National Postal MeterN
438,xxx590,828Inland s/n'd receivers sent to RockolaRockola
496,xxx634,161Inland s/n'd receivers sent to Underwood·U·
702,607 ? Inland s/n'd receivers from SI subcontract sent to Underwood·U·
724,318751,395Inland s/n'd receivers from SG subcontract sent to Underwood·U·
1,765,7611,769,771Irwin Pedersen s/n'd receivers sent to Underwood·U·
2,743,2862,770,326Underwood s/n'd receivers sent to National Postal MeterN
3,842,1773,846,371IBM s/n'd receivers from AO subcontract sent to National Postal MeterN
4,049,244 ? Underwood s/n'd receivers sent to National Postal MeterN

TABLE F

Serial Numbers Duplicated

(including use of X Suffix)

Prime contractors and/or subcontractors sometimes ran over their assigned serial number block and into a block assigned to
another prime contractor and/or subcontractor, creating duplicate serial numbers. Ordnance dealt with this by directing
an X be added after the serial number of the receiver that exceeded the assigned block if duplicates were found.

There is insufficient data to determine if every serial number between the lows and highs was duplicated or if it was random.
It is assumed some were sequential but possibly not all. More data submissions are needed to help determine any patterns.

Lowest Highest Manufacturer Code Details
940,600X 950,919X Saginaw subcontract for Inland X at end of s/n Duplication of Inland s/n's
3,651,550 3,651,898 SG ? Duplication of IBM s/n's
3,835,477-X 3,907,689-X IBM no identifying markings IBM duplicated some of s/n's they assigned to AO
4,800,004 4,801,447 Quality Hardware X below s/n Possible duplication of their own s/n's
5,550,040-X 5,550,285-X Inland -X below s/n Overrun into unassigned s/n block & Winchester s/n's
5,550,148 5,812,437 Winchester D below s/n Significance unknown
5,557,074-X 5,557,996-X Inland -X below s/n Machine error duplicating Winchester s/n's

TABLE G

Irwin-Pedersen, Grand Rapids, & Saginaw

None of the carbines produced by Irwin-Pedersen (IP) were accepted by Ordnance. Saginaw Steering Gear in nearby Saginaw, MI was already engaged in the preparation for the manufacture of carbines along with providing subcontracted receivers for Inland. The Irwin-Pedersen contracts were terminated by Ordnance. An Ordnance supplement to the Saginaw Steering Gear (SG) contract turned over carbine production at the Grand Rapids facility (S'G') to Saginaw Steering Gear.

Irwin-Pedersen Numbers Reassigned to Saginaw at Grand Rapids

Grand Rapids manufactured their own receivers as well as using viable IP marked and serialized receivers they had acquired in the takeover. Serial numbers IP had not yet used were used by S'G'. As were serial numbers from IP receivers that were scrapped
Serial Number RangeS/N Block Reassigned toMarkings on ReceiversNotes
1,762,520 1,875,039 Saginaw Grand Rapids Irwin-Pedersen or Saginaw S'G'names are intermixed
3,212,520 3,250,019 Saginaw Grand Rapids Irwin-Pedersen or Saginaw S'G'names are intermixed
Saginaw Receivers with SG Subcontractor Markings
Receivers produced at the Saginaw plant under subcontract to Inland initially had the SI receiver code on the left side of the receiver below the wood line. The receiver code was soon changed to SG. Receivers with the SG receiver code were intended for use by Inland though they were also used by Saginaw. The serial numbers and manufacturer names identify who actually used the receiver.
Serial Number RangeS/N Block Assigned toMarkings on ReceiversNotes
3,250,020 3,651,519 Saginaw SGSG on left side of some receivers, not all
Saginaw SG Markings on Receivers with Grand Rapids Serial Numbers
Among the last 1000 serial numbers of a block assigned to the Grand Rapids plant, receivers manufactured in Saginaw with SG markings have been reported mixed in with S'G' marked receivers manufactured in Grand Rapids.
Serial Number RangeS/N Block Assigned toMarkings on ReceiversNotes
3,249,020 3,250,019 Grand Rapids S'G', some SGpossibly as many as 1000 SG receivers
SG and S'G' Mix of Receivers and Serial Numbers
The data submitted for this serial number range is insufficient to reconstruct what was done by which of the two facilities with each others receivers. The data on these receivers, serial numbers, and prime contractor names is an ongoing research project that needs your help.

Serial Number RangeS/N Block Assigned to
3,541,000 3,651,519Saginaw

Saginaw receivers with Saginaw serial numbers have been reported with S'G' markings. At least one document has been found that indicates Saginaw received Ordnance authorization to sent an unknown quantity of receivers to Grand Rapids. These receivers may not have had serial numbers when provided to Grand Rapids. The Grand Rapids facility stopped carbine production on 01 Jan 1944 but continued to make receivers and trigger housings which were sent to the Saginaw Plant for assembly.

Assistance Request

If you own one of these carbines and would like to assist with the
reconstruction of this history, we have a short survey on our forum (with instructions)
for you to submit by CLICKING HERE.

TABLE H

Inland Manufacturing
Engineering & Presentation Gift Serial Numbers

(not government issue)
Letter prefixes X through XD were initially allocated by Inland for carbines intended for internal use only. The letters were followed by numbers (i.e. XA27, XA62, XD14). XA through XD was assigned for use by their Engineering Section on carbines built for testing and evaluation by their engineers. The quantity of carbines used by their Engineering Section varied so the numbers with each prefix also varied.

Inland later decided to present carbines as gifts to Inland employees, subcontractors, suppliers, members of the military or government, and others to show appreciation for their assistance and cooperation with Inlands war effort. The serial numbers allocated to these carbines were as follows.

Start
Serial Number
End
Serial Number
X1 X100
XA1 XA100
XB1 XB100*
XC1 XC100
XD1 XD100
XE1 XE100
XF1 XF100
XG1 XG100

* XB271 is a documented exception
This resulted in an unknown number of 'presentation' carbines possibly having the same serial number as the earlier Engineering carbines.

The carbines used for this purpose were not from inventory submitted to or accepted by the government. Many were constructed using whatever parts were available. Examples being outdated parts and prototype parts that had accumulated throughout the various departments within Inland over the years of production. This included a few of the previous Engineering carbines no longer needed.

Carbines that have one of these serial numbers may be an Engineering prototype, a 'presentation' carbine, or both. They are a specialty that requires each be assessed individually to determine its historical significance. They should not be altered or fired. Doing so may alter their historical value.

Assistance Available

Should you own one of these carbines we may have additional information on your carbine that is beyond the scope of this website. We can be contacted at the following e-mail address.

TABLE I

Carbines with a Serial Number above 8 million

H 26r Serial Number Dates Lookup

Post WWII, the Office of the Chief of Ordnance (OCO) assigned replacement numbers to armories, arsenals, and depots for carbines having damaged or obliterated serial numbers. Numbers were issued sequentially, beginning where Ordnance had left off with serial number blocks assigned during WWII. The letter X preceding the serial number designated it as a replacement.

The new serial number was hand stamped on top of the receiver behind the rear sight, in the vicinity of the prior serial number.

Quantity StartEnd Assigned to:Date/Notes
WWII
-7,369,6618,099,661 Inlandassigned block - M2's
-8,069,6628,084,811 Winchesterassigned block - M3's - not used
Post WWII - Assigned by Office of the Chief of Ordnance - Documents unclear if X added
9 8,084,8128,084,820 'Mr. Thompson', Field Services04 Mar 1949
1 8,084,821 National Guard Bureaudate unk
1 8,084,822 Raritan Arsenal14 Feb 1950
Post WWII - Assigned by Office of the Chief of Ordnance - X Prefix
3 X8,084,823X8,084,825 Raritan Arsenal18 Feb 1950
1 X8,084,826 Missouri National Guard17 Jul 1950
1 X8,084,827 Florida National Guard04 Apr 1951
25 X8,084,828X8,084,852 Rock Island Arsenal15 Jun 1951
1 X8,084,853 California National Guarddate unk
1 X8,084,854 Mt. Ranier Ordnance Depot18 Sep 1951
1 X8,084,855 Raritan Arsenal28 Nov 1951
25 X8,084,856X8,084,880 Mt. Ranier Ordnance Depot10 Dec 1951
200 X8,084,881X8,085,080 Rock Island Arsenal30 Jan 1952
20 X8,085,081X8,085,100 not reported18 Feb 1952
2 X8,085,101X8,085,102 Raritan Arsenal14 Sep 1953
1 X8,085,103 National Guard (no State indicated)15 Jan 1954
1 X8,085,104 Sampson AFB17 Aug 1954

The addition of the serial number on the top of the receiver forward of the rear sight indicates
the serial number behind the rear sight was obscured by an adjustable rear sight.
InlandWinchester
4 Digits: 0001- 0835
5 Digits: 00001-00900
5 Digits: 01701-07545
InlandWinchester
6 Digits: 000001-unknown
(also used standard s/n's)
used standard s/n's

Serial Number stamped Twice


If an adjustable rear sight obscured the serial number, Ordnance personnel were authorized
to also stamp the number on top of the receiver between the rear sight and bolt.

H 26r Serial Number Dates List

Other Letters

Should you have questions, assistance is available on our Discussion Forum.

The Discussion Forum also serves as a reference desk for the more advanced material that could easily overwhelm a website and is often subject to opinions that may vary
due to a lack of original documentation. A number of researchers and authors are present on the forums, helping others and seeking information for various research projects.

H%26r

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