IR Scopes - Hi/Low Serial Numbers Observed so far

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   The following is a summary of the serial numbers we have collected to date. These serial numbers have been confirmed thru photographs and/or communication.

We have info on several dozen scopes that have had the name plates removed and several dozen scopes the photos do not show the serial number clearly.

Please help us build on this information as some of the original documents providing exact quantities manufactured have so far been elusive. Instructions on how to help are posted in the Announcement regarding this research project at the top of this thread.

Thanks

Jim

Latest Update: 26 Jun 2025

------------------------------------------------------------
T120/M1 Scopes 
Assigned Serial Number Block: 1 & up

Electronic Labs - E.B.P.O. No. W-44-009-ENG-105 Date: December 1943
      (2,135 with 1,420 as Snooperscopes and 715 as Sniperscopes)
          Lowest s/n observed so far: 485
          Highest s/n observed so far: 2078

T120/M1 Power Supplies 

Electronic Labs - E.B.P.O. No. W-44-009-ENG-105 Date: December 1943
     Snooperscope
          Lowest s/n observed so far: 1434
          Highest s/n observed so far: 3295
     Sniperscope
          Lowest s/n observed so far: 5153
          Highest s/n observed so far: 6193

------------------------------------------------------------
Model M2 Scopes - 1945 (Early)
Assigned Serial Number Block: 5001 & up

1st Contract
Bell & Howell - W-44-009-ENG-230 Date: September 1944
Electronic Labs - W-44-009-ENG-235 Date: November 1944
     (846 Sniperscopes)
         Lowest s/n observed so far: 5391
         Highest s/n observed so far: 5797
2nd Contract
Bell & Howell - W-30-082-ENG(MSP)4358 Date: January 1945
Electronic Labs - W-30-082-ENG(MSP)4326 Date: January 1945
     (quantity mfg not yet determined)
         Lowest s/n observed so far: 5868
         Highest s/n observed so far: 6731

------------------------------------------------------------
Model M2 Scopes - 1950 (Late)
Assigned Serial Number Block: M2-001-50 - M2-1700-50

Bell & Howell - P.O. 88-B-18900-88
Cornell-Dubilier Electric - P.O. 88-B-18889-91
     (1,700 Sniperscopes)
         Lowest s/n observed so far: M2-301-50
         Highest s/n observed so far: M2-1692-50

------------------------------------------------------------
Model M3 Scopes

American Optical
1st Contract - P.O. No. 88-B-18762-94 Date: 8-31-50
     (6,000 Sniperscopes)
        Sniperscope indicated on scope's name plate
            Lowest s/n observed so far: M3.11.50
            Highest s/n observed so far: M3.1638.50
        Telescope indicated on scope's name plate
            Lowest s/n observed so far: M3.1703.50
            Highest s/n observed so far: M3.5915.50
2nd Contract - P.O. No. 27-43200-03 Date: 6-23-51
     Lowest s/n observed so far: M3.6019.51
     Highest s/n observed so far: M3.10458.51
3rd Contract - P.O. No. 27-55902-03 Date: 6-30-53
     no serial numbers (4 examples so far)

Capehart-Farnsworth - P.O. No. 27-43201-11 Date: 6-22-51
     Lowest s/n observed so far: 22
     Highest s/n observed so far: 4100

Oak Mfg Power Packs
1st Contract - P.O. No. DA-11-184-ENG-6148 Date: April 1951
     Lowest s/n observed so far: 11
     Highest s/n observed so far: 5396
2nd Contract - P.O. No. DA-11-184-ENG-6529 Date: July 1951
     Lowest s/n observed so far: 6183
     Highest s/n observed so far: 15633
3rd Contract - P.O. No. 27-654-MAP-07 Date: February 1952
     Lowest s/n observed so far: 16114
     Highest s/n observed so far: 16296

------------------------------------------------------------
FYI...

Yes, we're still researching these and will be for a number of years. Web pages are under construction. Had to take a break to handle Larry's collection but hopefully back on them soon.

Edited by sleeplessnashadow - Jun 26 2025 at 11:09pm

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sleeplessnashadow Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: Nov 09 2015 Location: SoCal Status: Offline Points: 1253	Post Options Post Reply Quote sleeplessnashadow Report Post Thanks(0) Quote Reply Topic: IR Scopes - Hi/Low Serial Numbers Observed so far Posted: Nov 02 2017 at 3:51pm
	The following is a summary of the serial numbers we have collected to date. These serial numbers have been confirmed thru photographs and/or communication. We have info on several dozen scopes that have had the name plates removed and several dozen scopes the photos do not show the serial number clearly. Please help us build on this information as some of the original documents providing exact quantities manufactured have so far been elusive. Instructions on how to help are posted in the Announcement regarding this research project at the top of this thread. Thanks Jim Latest Update: 26 Jun 2025 ------------------------------------------------------------ T120/M1 Scopes Assigned Serial Number Block: 1 & up Electronic Labs - E.B.P.O. No. W-44-009-ENG-105 Date: December 1943 (2,135 with 1,420 as Snooperscopes and 715 as Sniperscopes) Lowest s/n observed so far: 485 Highest s/n observed so far: 2078 T120/M1 Power Supplies Electronic Labs - E.B.P.O. No. W-44-009-ENG-105 Date: December 1943 Snooperscope Lowest s/n observed so far: 1434 Highest s/n observed so far: 3295 Sniperscope Lowest s/n observed so far: 5153 Highest s/n observed so far: 6193 ------------------------------------------------------------ Model M2 Scopes - 1945 (Early) Assigned Serial Number Block: 5001 & up 1st Contract Bell & Howell - W-44-009-ENG-230 Date: September 1944 Electronic Labs - W-44-009-ENG-235 Date: November 1944 (846 Sniperscopes) Lowest s/n observed so far: 5391 Highest s/n observed so far: 5797 2nd Contract Bell & Howell - W-30-082-ENG(MSP)4358 Date: January 1945 Electronic Labs - W-30-082-ENG(MSP)4326 Date: January 1945 (quantity mfg not yet determined) Lowest s/n observed so far: 5868 Highest s/n observed so far: 6731 ------------------------------------------------------------ Model M2 Scopes - 1950 (Late) Assigned Serial Number Block: M2-001-50 - M2-1700-50 Bell & Howell - P.O. 88-B-18900-88 Cornell-Dubilier Electric - P.O. 88-B-18889-91 (1,700 Sniperscopes) Lowest s/n observed so far: M2-301-50 Highest s/n observed so far: M2-1692-50 ------------------------------------------------------------ Model M3 Scopes American Optical 1st Contract - P.O. No. 88-B-18762-94 Date: 8-31-50 (6,000 Sniperscopes) Sniperscope indicated on scope's name plate Lowest s/n observed so far: M3.11.50 Highest s/n observed so far: M3.1638.50 Telescope indicated on scope's name plate Lowest s/n observed so far: M3.1703.50 Highest s/n observed so far: M3.5915.50 2nd Contract - P.O. No. 27-43200-03 Date: 6-23-51 Lowest s/n observed so far: M3.6019.51 Highest s/n observed so far: M3.10458.51 3rd Contract - P.O. No. 27-55902-03 Date: 6-30-53 no serial numbers (4 examples so far) Capehart-Farnsworth - P.O. No. 27-43201-11 Date: 6-22-51 Lowest s/n observed so far: 22 Highest s/n observed so far: 4100 Oak Mfg Power Packs 1st Contract - P.O. No. DA-11-184-ENG-6148 Date: April 1951 Lowest s/n observed so far: 11 Highest s/n observed so far: 5396 2nd Contract - P.O. No. DA-11-184-ENG-6529 Date: July 1951 Lowest s/n observed so far: 6183 Highest s/n observed so far: 15633 3rd Contract - P.O. No. 27-654-MAP-07 Date: February 1952 Lowest s/n observed so far: 16114 Highest s/n observed so far: 16296 ------------------------------------------------------------ FYI... Yes, we're still researching these and will be for a number of years. Web pages are under construction. Had to take a break to handle Larry's collection but hopefully back on them soon. Edited by sleeplessnashadow - Jun 26 2025 at 11:09pm
	Construction builds. One person's mind and efforts can build, but not like that of two or more. Destruction destroys. One person's mind and efforts can destroy, but not like that of two or more.