AGE,
When it comes to determining value, the world of trapdoor springfields is about as complex as the world of 1911 colts or lugers. Dixie Gun Works keeps a large inventory of these. You might want to look at their website (
www.dixiegunworks.com) or order their antique arms catalog (I count 31 trapdoors in the latest catalog). They also do appraisals if this is part of an estate settlement. By the way, if you are ever in NW Tennesse I highly recommend visiting Dixie Gun Works. KFS