It’s a Chiappa 1874 (Quigley gun). It’s a 45-70.What cal is your Sharps? Whos the maker? I have a 45/70 Business rifle made for me in the 80's its a Shilo/C. Sharps before they split up. Had an original 50/70 but sold it.
Look up EM Precision on FaceBook. Or contact Shane via email here; [email protected]@6MT do you have the contact information? I would be interested in ordering