kcgunesq,

A chamber cast and bore slug are really going to be required to figure out those barrels. IF they are 500 BPE, then you are looking at would could be a pricey gun. Even if they are 38-55 the price could be more than you imagine, if they are properly regulated.

Here are 2 Alexander Henry guns for sale, both 500 BPE
http://www.cabelas.com/gun-inventory---wheeling---fine-rifle---1065973-ahenry577-whe.shtml

http://www.brileygunvault.com/alexanderhenry500bpe.aspx

My best guess. The gun was made up very early on. For one reason or another much later, a second set of barrels was made up for it.

Pete

http://www.damascus-barrels.com/Movie.html