Military type flap holster. I know the many German and occupied holster products of WW2, which it resembles in some cases but isn't. Next my thinking was, maybe Spanish for one of the Stars. The magazine pocket is kinda wide, like for 9mm Largo maybe. The construction on the rear edge is different. Instead of the outer shell stitched on the the back piece, there is a narrow intermediate piece that brings the front and back together. The holster is about 1911 size. Markings stamped into the leather on the back are (something) --00-080. No markings on the inside of the flap. Six digit ink pen marking on belt loop, presumably a serial number. Ideas?