Oh, and to answer LeFusil's questions:

The gun is a Hammerless gun. It was made in 1890. Damascus barrels. Black Powder proofs. Chambers opened to 2-3/4". Never passed a second time through the proof house after initial proof in 1890. Excellent external metal finish. Replacement stock of reasonable quality. Ejectors. Third bite.

Not sure if it is a Triplex action. I'd need to check my references to ascertain that. It is a bar action gun with "modern style" side locks, not the ducks bill design.