I wonder if the D.R.P.A. marking refers to a Deutches Reich Patent Document.
Reading from the copy of the patent document provided earlier in this thread,, does Deutches ReichPatentAmt make any sense vis-a-vis these initials on the shotgun?
I have a .22 caliber, bolt action, single shot Mauser ES340 B (and am looking for an ES 350 B) and it has D.R.G. D.R.G.M. which indicate, according to literature, that design aspects of the rifle were protected in German patent rules.
David
David
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