Found an interesting piece at a local shop and would like more info about the gun and maker. The piece was made by G.W. Golcher addressed 1934 Frankford Ave Philadelphia, PA. 10-bore, 30" barrels w/ wide swamped rib, rebounding hammers, bar action sidelock, splinter forend with 1/2 pistol grip, horn butt. Excellent condition for its age. Checkering still sharp and a lot of color case still remains. Any idea of value? Any help would be greatly appreciated!

Adam