CD 517.7: Russia

2 5/8" X 4 7/8" (67mm X 97mm)

 

No markings

 

Picture courtesy Earnest Griffin

Note this style has no inner skirt.  This has crude threading and the top groove was creted by grinding out a slot - there are three of these known which are all very similar.

CD assignment by Dario Dimare September 2021


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