Dear Mr. Armstrong,
Thank you for posting your request on History Hub!
We searched the catalog and located the series titled Joint Army-Air Force Proposed and Approved Specifications on Items of Military Supplies and Equipment,1933-1937 in the Records of the War Department General and Special Staffs (Record Group 165) that includes a file titled “ 94-27834D Watch; Navigation, Type A-11A (Hack)” in Box 316 [loc: 390/36/17/4] with the following information :
- 94-27834 approved on 6 June 1940
- 94-27834-A approved on 10 September 1940
- 94-27834-B approved on 2 November 1942
- 94-27834-C approved on 29 September 1944
- 94-27834-D approved in 16 June 1945
We also located the series titled Government Publications, 1861 - 1992 in the Publications of the U.S. Government (Record Group 287) that includes a file unit titled “TM 9-1575, War Department Technical Manual for Wrist Watches, Pocket Watches, Stop Watches and Clocks” in Box 9/300 [loc: 232/11/13/7]
For access to and/or copies of these file units, please contact the National Archives at College Park - Textual Reference (RDT2) via email at firstname.lastname@example.org. In your email, please include the Record Group, Series title, File Unit titles, Box number, and Location.
We hope this is helpful. Best of luck with your research!
Thank you Hannah.
It never occurred to me to look in pre-war archives for these files.
I will contact NARA and look in the pre-war archive index for two other specifications I am chasing.