By Polaroid. The frame looks the same as that of the B-8 and M-1944 but is unmarked. The rubber is generally flexible but there is damage around the studs where the lens is attached and there is some perishing at the edges. Some careful glueing would probably fix some of this. Good elasticated strap. Fitted with a red-tinted lens as used by airgunners' for use with tracer fire. Stock code G26103.