For the most serious collectors, John Stimson himself offers a direct look‑up service. Post your complete serial number on the Hi‑Standard forum (in the appropriate sticky thread) along with a request for Mr. Stimson to check the shipping records. He can often retrieve the exact date the pistol left the factory, the invoice number, and even the original account number the gun was shipped to.
The most desirable variant is the "Model HD-Silent" (or USA-HD), developed for clandestine work. histandard model hd military serial numbers best
Unlike modern firearms that use alphanumeric codes, High Standard used a sequential numerical system during the 1940s. For the most serious collectors, John Stimson himself
And if you ever have the chance to put a box of standard velocity .22 LR through a well‑preserved HD Military – do not pass it up. That crisp, heavy barrel, the tactile click of the adjustable sights, the smooth blowback action, and the surprising accuracy will remind you why, after nearly eighty years, the Hi‑Standard Model H‑D Military remains one of the best .22 pistols ever made. He can often retrieve the exact date the
If you are looking for the "best" High Standard Model HD Military: