I have a 36 cal. T/C muzzelloader with no rear sight. I would like to replace it but have not been able to determine what the original sight looked like. T/C has been no help at all. The gun is Hawken style with serial number 14308 but has the general characteristics of a Seneca. It does not have the model type on the barrel. The barrel is 27 and 7/8 in. long including the breech, has a 3/4 in. octagon barrel flat to flat, and has two or three sight mount screws 2 and 1/2 in. apart with a center screw 1/4 in. back from the front screw. Have been unable to find a rear sight that fits without doing some gunsmith work that I don't want to do. Any information on the original sight would be appreciated.