Thanks. Regarding the 1892-1893 dates, I assumed the dates on the water table, whatever they signify, are 1800 dates, the first being 1891. The barrels are open choke. However, they don't appear to be cut or filed and the filler is still in place as well as both barrels are touching. I put a square across and they are flat. I measured the bores with a digital caliper and I got .710 in one bore and .712 in the other.

Last edited by gunsaholic; 03/06/19 03:34 PM.