Roux/underlever action with the top lever as a barrel selector
Of course I'm sure there are exceptions, but I don't think I've seen a German longarm with the owner's name atop the rib, or at least it is very uncommon. There have been a few examples that some thought the name was the owner but usually the name was a firearms merchant, who didn't want anyone else's name to be found on the longarm but his.
"Crown" over "G" notes proof with a solid projectile and the "Blue Book" is a start but one really needs a list of the marks from the 1911 rules. Imperial Eagles varied slightly. With a serial number about 17k, I'd say that it was made at a maker who made several per year. The marks under the current marks are older German marks. I'd guess that the tube was proofed as a single prior to 1911 and possibly with a plug gauge stamp, which was probably worked down. Then the new marks were overstamped.
Kind Regards,
Raimey
rse
