I'm trying to find information about the double barrel with hammers.
There is some proofmarks and some written words:

A. MULACZ K.U.K. HOF = BUCHSENMACHER
ALSER STRASSE N38 IN WIEN

Cal. 36 (right barrel) and cal. 11.5 (left barrel).
Numbers 3505 and 2693.

Any further information is welcome.
Thanks in advance!


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