These are two of my war time techs. The one on the right does say Army Metal Case on it's shipping box. It could mean from the PX, issued, or both, as the US would get as many razors as possible for the troops, possibly even from civilian sources. But from what I understand, other razor companies like Clix and Gem also made razors issued to US servicemen. I think you'd see Gem razors used more by the Navy, but I could be wrong, just what I heard. And possibly, a razor could've been picked by someone because of a personal preference. Edit: Of course other techs were also used, for example thin and fat handle ones in different types of cases, metal and khaki.