An old buddy of mine has a Parker Hammer Gun with the Lifter opening mechanism and is thinking of selling it. The gun is 12 ga and has what looks to be 30" twist steel barrels, light border engraving around the locks, etc. English stock (with lot's of drop), and a steel butt plate.

Overall condition is very good - Bores are shiny with no pitting, wood is not chipped or cracked, checkering is slightly worn, but not bad, some case color in the protected areas, and the action is tight and on face. The last patent date on the gun looks to be 1876.

What would be a fair price to offer him - you don't see a gun like this often so I have no idea of the value. Is the lifter action strong? How about the twist steel barrels - are they similar in strength to Damascus barrels? Any issues with shooting this gun with light loads or using 20ga tubes?