I picked up a monocular today at the local gunshop. It is about 2.5 in. X 1.5 in. and is finished with a blackish crinkle coat. It is marked CIRCLE AIMING MI/ NC/E.K.Co./FJA/1943. I am assuming the FJA is L/Col. Frank J. Atwood, which would make these military issue. However, I can not find anything on it anywhere...reference books..the net...nowhere. Any help would be greatly appreciated.