Here's a similar one from 1954, so I assume that the satellite TVA(Torpedoversuchsanstalt)Eckernförde(a subsidiary of Kiel), used a single Oak Leaf with the Nitro proof.





http://www.hunting-heritage.com/blog/index.php/2016/04/08/sauer-sohn-west-germany/

http://doublegunshop.com/forums/ubbthreads.php?ubb=showflat&Number=471245&page=all


Subject longarm.


Cheers,

Raimey
rse