you'd probably find more help on the autograph-specific sites, like sportsgraphing or sportscollectors.net. there are actually graphers who specializes in situations like this and would take items on consignments.
be forewarn you are dealing with alot of kids, immature people, and scammers. i've lost money there twice in 1 year where the seller just refused responsibility for his mistake (we're not talking big money either).
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