Ford:

I just don't think it was a light wave guide, but rather an intricate rear sight. There is just too much to the internals. Some >>Dot<< or Spider Web that I have not been able to identify.

The Old Austrian(German) term for the device is Gucker whilst the Slovenian name is kukalo.

More later as I am trying to sort this annealing thing for 6,5X70R Sauer cases.

Hochachtungsvoll,

Raimey
rse