National Postal Meter M1 Carbine: A Detailed Look at a Unique Wartime Carbine
From Accounting to Arms: The Genesis of a Carbine Manufacturer Before the thunder of war, the National Postal Meter Company, known simply as NPM, was not in the business of arms manufacturing. Their primary focus was the production of postal meters, the machines used to calculate and print postage on letters and packages. Located in … Read more