I had a similar but perhaps more aggregious, situation on Gunbroker. I was high bidder on a gun, also a Sterlingworth, where the seller referred to the serial number as having a line through it and he said the gun was purchased (or taken home in his lunchbox)by an employee of Savage. before sending money, I asked for a picture of the serial number on the receiver. He sent photos that were so blurry that absolutely nothing was discernable. I asked for another and he said that was the best his camera would do. I didn't send money but did report it on his feedback. That was all I could do; as Jon said there is no point of contacting the Gunbroker people. They don't care and in no way do they want to get involved in bird dogging problems with their otherwise valuable service. You really do have to be careful and, in the case referenced above, I don't think there is anything you could do differently to protect yourself except stay home.
