This is really great stuff, a lot of information that has to be sifted through. One of the points I forgot to mention but has been addressed here somewhat is the 'parts barrel ' finds. If I understand this right there would be no way of telling apart an arsenal rebuild from a gun put together with authentic cavalry parts. So the arsenal rebuild is really the key to this or am I missing something? What if someone found authentic parts at shows or swap meets over time and finally had the pieces to build an artillery, would that be a fake?