Fl 22694 periscope. Help needed!

By mkb42 ( December 23, 2017 at 10:36 pm) · Filed under History forum

Can someone help to identify a strange voigtländer periscope? It is marked ddx 69G 6V 006. and Fl 22694.
total length 110cm and 56mm in dia.
Any help would be much appreciated.

Regards
Tom

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