GECO is a trademark of Gustav Genschow of Hamburg, according to Carder's "Side by Sides of the World". You have a fair to middlin' grade of German gun, sort of a Chevrolet. Durable, useful, well made, but not extremely expensive.
M. G. Stahl is short for "Maschinengewehr stahl", or "Maschinengewehrlauf stahl ", literally "machine-gun steel", or "machine-gun barrel steel". This is a typical puff term from the marketing department, much as LC Smith used the term "armor steel".
The small marks are "proof marks" , including associated letters and numberts, and will give us a means to date the gun, including possibly the actual month and year it was proved. "The Crown over U " is the proofmark, and "Crown over W" is the indicator that the barrels have choke. Th German Eagle, if it is the Imperial Eagle, is a pre-1939 mark. If it is a Nazi Reich Eagle, it is 1939 and later.
Look forward to the pics or full descriptions.
Regards
GKT
