That's fabulous workmanship all the way around. My Dad had a Philly Fox, and his Dad an L C Smith, both in 16 gauge. Both guns left the family before I had any chance to grab them. I had to fill that void, and found a 1913 Ithaca 16 gauge Flues a few years ago. I wish it looked like the OP's, but then I'd never hunt with it. Biggest issue was finding the 2 1/2" shells, especially here in MA where it's hard to buy ammo online.