I also disagree with the advice to offer them on
ebay with "You decide, no guarantees." If you know these are forgeries, you ethically cannot offer them with that subtitle. This is a problem with a number of
ebay sellers. Let's not add to the problems of
ebay.
I am planning on an APS "On the Road" at Milcopex in September on detecting philatelic forgeries and altered revenue stamps. For those interested in revenues, please consider joining me in Milwaukee for the show where the American Revenue Association and State Revenue Society will be meeting. Please consider exhibiting there as well. I will be on the philatelic jury.