By federal law (Gun Control Act of 1968), all firearms manufactured after 1898 must have a serial number. However, some OSS pistols had their serials during field operations for deniability.
Share the first three digits, and I can help you narrow down the exact production year! High Standard - Follow Up Info hi-standard model h-d military serial numbers
Hi-Standard Model H-D Military is a legendary .22 LR target pistol, cherished by collectors for its robust steel construction and its ties to World War II clandestine operations. Identifying the production year of these pistols through their serial numbers is essential for collectors seeking to distinguish between wartime military contracts and post-war commercial production. By federal law (Gun Control Act of 1968),
He went deeper. : “Carried by a CIA pilot over the Himalayas. Muzzle stuffed with mud after a crash. Cleared with a twig. Still fired on the first trigger pull.” High Standard - Follow Up Info Hi-Standard Model