It reminds me of a basic Gustav Fukert design, but Oberhammer may have had his own design & Patent Protection.


https://www.doublegunshop.com/forums/ubbthreads.php?ubb=showflat&Number=609490&page=1

https://www.germanhuntingguns.com/archives/oberhammer-peter-of-munich/


Serbus,

Raimey
rse