That show is fake as the day is long.
Anyone ever see the one with the Gatling gun, or the Hotchkis 2-pounder field gun? Both so very fake. This pieces were never gonna sell and the producers went looking for stuff like that.
I know two people who walked in there trying to get onto the show with neat stuff, and both were told to come back at a specific day and time and act like they'd never been there before.
Same with American Pickers. They went to the guy I bought my 1944 Willys Jeep from a couple of years ago and the producers there basically told him everything he was going to do and say. They wanted him to be the gruff old, "get off my lawn" type but the guy is a happy-go-lucky type who smiles all the time. The staff wasn't happy that he couldn't be who they were looking for so his segment never aired (though they badly edited the segment they did film down the road, as they showed a quick scene of those two guys standing in front of one of his Jeeps by accident)