I did a rather quick examination of a trapdoor that appears to be a Short Rifle. Most, if not all of the characteristics follow Dick's book. Even has the shortened ramrod. Only difference is the lock plate is marked 1864, not 1863 at the rear of the plate. Could this be a short rifle? It has proper cartouche and N. What else should I look for? Is there something that will give it away as being a Bannerman? It is a nice example if truly a short rifle. Thanks