Mike,

I had some of the info on this gun you provided (thank you) but had neglected to record the barrel number. The closest Lindner barrel number to your gun (#1299) is #1304, which corresponds with a Prussian Daly with a serial number just over #1000. Based on the features of that gun, I would estimate the date of production as circa-1903. This date would jive with the proof marks on your second set of barrels. Are these damascus or fluid steel barrels?

Your gun has a story to tell for sure.

Ken

- There are two .410 built by Lindner in the database, one being a Daly. I'm not sure if the SLC gun is one of them.