Hello Raimey,

Thank you for the quick reply and the information therein. To answer your question, there are no markings on the standing breech, though there are a couple small stamps on either side of the forend hanger I had not previously noticed. I have attached photos of these stamps for your consideration - there appears to be a "1" (?) stamped ahead of the forend hanger and what looks to be a "D"(?) and two dots on the aft-end of the hanger. If additional photos would help in your determination, please do not hesitate to ask.

Would the possible attribution to Sylvester Schilling and the Monopol mark help narrow down a date of manufacture? Thank you once again for your help...

Best Regards,

Chris