Measure your chambers. My 1875 10 ga has 2 5/8" chambers and very short forcing cones. David

Lots of ingraving, the web says Parker Bros. ???? Conn. Damascus steel. There's a small o then a 2 on the lug. Lower flat area has a D with 526 under it. The serial # is on the other flat 13814 as well as on the back end of the lug.I don't know how to post pictures but another member did it for me after I emailed them to him and they're posted on one of my other posts labeled pictures. I have to learn how to make them smaller. I'm not good with computers. I'd love to be able to shoot it at least once or twice(Each barrel).