Just heard about an Alexander Henry 12 bore Damascus with a "bunch" of "fine" engraving that might be coming my way.. dont know anything about model or year yet and I couldnt find too much about AH in my books or online I know they started in Edinburgh 1853 made primarily rifles..

Anybody own one? Is there anything to stay away from? Dos and donts on these (besides the obvious condition condition con & barrel wall thickness)?