[drcy]

A good selling technique, including on eBay, is to post big clear photos of the signature. Not only does this allow knowledgeable buyers to examine the signature, but demonstrates your confidence in the signature. And buyers will judge the authenticity of one signature in part by judging the authenticity of your other autographs . . . As a photograph buyer, if an eBayer or auction is selling a rare photograph I'm interested in, I check out what else he is selling. If he is selling other photos that appear to be accurately labelled and knowledgeably described, I'll be more confident in the seller and the first photograph.

Someone recently asked my opinion about the authenticity of a rare photo on eBay. I looked at that auction listing, but, as is my normal procedure, also looked at what else he was offering before giving my opinion. Part of my opinion included that the seller was selling other old, if inexpensive, photos that appeared to be accurately described. If the seller was offering elsewhere a bunch of obvious reprints offered as originals, or even Goudey and T206 reprints offered as originals, I'd have told the questioner to stay far away.

When I sell, I'm of the philosophy that my other lots help sell the one lot.