Does the barrel bracing extend to the front of the barrel? Definitly interested in pictures. Im thinking, judging by what you have desribed that yours might be a "parts" gun, in that it was built from parts. However IIRC the Walace Nel-spot (the gun with historical value that I had mentioned) now owned by drum, has the rounded frame, and is a standard tack brace as well. What exactly is stmped into the top of your nelson? just Nel-spot 007? or Nelspot "007" The nelson paint comapny.....ect..." Definitly interested in pitures. It should help narrow things down a bit, as until yours only two nelspots that I know of have a "serial" number stamped in the frame.