[canjond]

Personally, I always value an item like this same as a single-signed item. I may be in the minority here, but the piece doesn't feature two "useful" signatures; i.e., each in a spot where the piece could contain two signatures that could be split. It's neat to have two signatures on one piece, but I wouldn't pay a premium for it. I once had a Cy Young signed postcard which was signed and dated on both sides. It was a cool piece, but I don't think it was worth the price of two Cy signatures.