Lovely effort. Now can you take a piece of paper and a soft pencil, say 2H maybe HB?, & make a complete rubbing to see if a >>S<< or whatever appears to the left of the characters?
I have submitted an indirect inquiry to Toschi of Ravenna, Italy who might well know this >>ignotti<< or Toschi's brother? Toschi doesn't have any heirs or assigns to take up his gun work & the craft will die with him. About 6 months back I was to meet him @ his shop but travel got the best of me & I over slept(actually montenegrin allowed me to stay fast asleep....). Then he wasn't available when we dropped by his shop. But my plan is to visit this most talented mechanic in the near future.
Cheers,
Raimey
rse