To SDC,
Thank you. i believe that the website you pointed me to confirmed my thoughts that this gun was a conversion (or assembled with parts) of a Lefaucheux pinfire into a centerfire. The manufacturer Leon Leclercque was one of them that did those types of conversions. The 4 on the parts could be a serial number I guess. I need to do a little more digging but it helps to know that i may be on the right track.
I put up more pictures also if anyone has any other ideas. This time with the gun disassembled and all the parts pictured separately. It would also help greatly if someone had any idea of the worth.
http://s630.photobucket.com/albums/uu22/Amtaurina/