Can someone help me with a positive id on an RAF item with the stores code of 14B/3474. I see from an online list that it relates to camera equipment, but no idea what is is exactly ? It's a steel box, about the size of a tobacco tin, but a bit thinner, seems to have a clockwork mechanism inside. Painted green and stencilled : REF. No. 14B/3474 /I\ I can do some pictures tomorrow in daylight. Thanks in advance.