Nice piece, David. I don't think it is Eastern, despite some of the points you mention. Perhaps French made for the Eastern market, however? I've heard that many Mediterranean/French pistol makers sold to the Turks. Also, as far as the lack of a ramrod, many of the Western types had this as well, specifically boarding pistols, Houdah guns, etc.
I know there is those Turkish flintlock types that have barrel bands, lack a ramrod and frequently mimic the French types, complete with side brass designer plate, but I've never seen one of this quality/grip type.
Wow, looking back on the Forum, I just realized that you were the one that helped me identify mine, David! Thanks, BTW-