Hello, I received several parts that seem to come from RAF gunsights in a lot of optical parts bought in the UK.
One set of small parts is still bagged with the reference : 8776/1 V13933/170 TYPE 6 SIGHT MARK 3 - REFLECTOR and it contains a small (1,5 x 1,5 cm.) optical mirror with bevels.
Another set has a similar reference : 8762/20 V13933/157 TYPE 6 SIGHT MARK 3 - POLAROID DISC, which I haven't opened, but contains a small disc that is probable a polarizing filter.
Then two parts may come from the same set or maybe another sight, but they have no marks on them : one is a flip-out optical disc with a very fine etched cross-hair, while the other is a complex but tiny (4 x 3 x 2,5 cm) optical system built around a right-angle prism, a lens and a built-in flip out magnifying loupe operated by a lever.
I have found pictures for a "Type 6 Sight Mk II Gyro Rate Telescope", but that seems like a much larger apparatus, so I'm not sure it matches the first items. As for the latter 2, I can't even be sure they belong together. I looked a fair bit into RAF gunsights, but I know too little to know whether I was even looking in the right direction.
Any help identifying these would be great, and if somebody knows who they could be useful to, that would be great to, since I'd rather they go to a renovation project somewhere.
Thanks !