Yep, "feralmerril" is correct it is a Colt Model 1878 and the Spur on the grip has been ground down a little. Some folks liked the Spur to keep the revolver from rotating back into you hand when shooting. I think it looked nice and it does help when shooting a little. Here is one of mine, an 1892 Colt 1878 Revolver. The photo is not that great but show the revolver, LOL.