It's similar, but not quite - the DOE one was an official Colt product, the Model 633, and it was in 9mm, while this was made by a small gunsmithing company (or maybe even just the one guy, Timothy F. La France, I can't find much information on how big the actual company was). I assume it was probably inspired by the Colt one, but I'm not sure if the dates line up.

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