Emil Flues used to make gun on Seneca St. here in Buffalo, NY. One of the finest SxS's I have ever seen was one of his. It was a 12 gauge sidelock and was world class in every way.
If I recall, it had 30" bbls and was tightly choked. It came from the estate of a local newspaper publisher.
It was an incredilbly well made piece.
The long tang was inletted in such a way to allow wood to show in between the metal along its length. The gun had fabulous engraving and, no, I dont' own it.
It sold for $1,200 in about 1975 at a local gun shop.