Posted By:
HankronThat's true, and that's why I get phone calls from MastoNet on auction day.
You are correct that the real potential for a multi-thousand dollar forgery is the making of a brand new high end card of cabinet card or such. In fact these types of forgeries have appeared in the fine art photography world. In one case, a talented photographer made a salt-print photograph (early form of photography) of a neightborhood girl dressed in Victorian clothes and passed it off as authentic to top experts at an Enlglish exhibition.
I know for a fact that there have been fake photographs in top auction houses the we all know and love and bid in. In fact I could tell that some were fakes just looking at the picture in the catalog. But as neither the auction house nor the bidders solicited my opinion or review I figured it was their problem.