Allen: Good catch with the frizzen to spring placement and the hammer stop! The hammer and frizzen may be older replacements? Also note the length of the sear spring past the lock plate. :idunno:
Also, notice the octagon portion of the barrel runs better than half the length of the barrel?? Almost as if the barrel was shortened from a long gun?
So far, I'm still convinced this gun at least started life as a Balkan made piece. Rick.