pennlineman- I got mine from Jeff at Highland Arms. He did say he had a second gun like mine, so it may well be the mate to yours. Either way both of us got good deals on a great gun.
tpr7304- The show is good - there is something for everyone there, it just depends on what you're looking for. Lots of military surplus stuff to pricey SS shotguns, also a number of knife makers/dealers. Parking: $8 Admission to show: $8.
I got in the show free because I renewed my NRA membership (save $10 on the renewal and get in the show free). They run this show every three months, so next one will be March.