[David R]

Originally Posted by cyten

I've seen this rifle posted somewhere before, I recall the very strange "hammer". I imagine it must be a replacement and appears to be one piece, no way to separate the jaws to replace the flint. My guess is that it was made to replace a missing cock, with some kind of material stuffed in the crevice to allow it to spark for show.
The forend of the stock is strange to me as it is angular, like the butt. The lock also seems rather large and the triggerguard doesn't quite match the style and may be a replacement as well.

I would put this as late 17th / early 18th century Turkish. Elgood's "Arms of Greece & Her Balkan Neighbors in the Ottoman Period" has some similar examples, aside from the hammer/cock of course.

Percussion conversion?