Easy one for me. Second Generation Fox BE in 20 gauge in really nice condition. I spotted it on an auction site about 5 years ago and it had 26" barrels and I was concerned they might be cut (I had been bit before on a cut barrel gun). Ordered a factory card on the gun and that took 24 hours. I could have had it for less then half of what it was worth as it sold while I was waiting for the card and was removed from the site. I'd of course called on the gun when I first saw it, but the seller had no way of measuring chokes or sending me any pictures. etc etc.
