Wow! It pays to be nice at the flea market!
Just met up with a new contact who I made friends with at the flea market on Sunday; we went to a coffee shop in town and I bought a bunch of pens from them. Mostly good stuff I can use, 51's and such, but this one pen really stood out.
Smooth, all metal Conklin Crescent filler. Some teeth marks on the cap, but it only cost me $150.00.