This IS exciting! The right barrel is the usual (nice)
Damas Anglais or generic English "Three Rod", but the left MAY be "English machine forged chequered 3 rod Damascus" mentioned in the 1891 Birmingham Proof House Trial
http://books.google.com/books?id=inQCAAA...CmRPs&hl=en Craig - could you please post an ultra close up of the left barrel pattern?
Dig, Peter, Mike, and Paul (didn't these guys have a "British Invasion" band in the 60's ?

) When you gentlemen find the English Damascus Rosetta Stone we'll know for sure!!