Welcome to today’s Photo of the Day! Here we have the pistol that put interchangeable parts into a US government contract for the first time. This is a Simeon North Model 1813 in 69 caliber, made in Middletown, Connecticut. The 1813 contract is the document people cite when they talk about the American system of manufacturing. Written into it was a requirement that the parts of any one pistol had to fit any other pistol in the order, all 20,000 …
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