Have a Lefever C thumb push s/n 93XX from 1885, Mark. It's a 10 gauge 2-barrel set, both heavy. Also has the screw at the same place behind the dolls head.

Keith Kearcher did a butt stock transplant brilliantly and I regularly use the gun for geese. Do not know if Keith's son, now running the business, can do that sort of work.

Regards, Tim