The “first” Trapdoor rifle, serial number 1 of the Model 1865, is not the earliest Allin conversion. The actual first experimental Allin conversion (no serial number) resides in the Springfield Armory Museum. Furthermore, serial number 1 of the famous Model 1873 was not a standard rifle; it was a special, highly engraved presentation piece given to a senior ordnance officer. Multiple “Number 1” rifles exist across different models, creating confusion.
Manufactured in , this Model 1873 Infantry Rifle belongs to a period of massive production (over 160,000 units made between 1879 and 1885). springfield trapdoor serial numbers
The term “Trapdoor” refers to the hinged breechblock mechanism designed by Erskine S. Allin. The system evolved through several distinct models: the Model 1865 (first Allin conversion), Model 1866 (second conversion, .50-70 caliber), Model 1868, Model 1869, Model 1870, and the definitive Model 1873 (introducing the .45-70 Government cartridge), followed by the Model 1884 and Model 1888. The “first” Trapdoor rifle, serial number 1 of
What date is stamped on the ? (e.g., 1873 or 1884). near the breech block hinge.
On a Springfield Trapdoor, the serial number is located on the top of the receiver, near the breech block hinge.