This is actually the 2007 Topps Draft Picks and Prospects card. All of them are unsigned cards.
http://www.beckett.com/search/?term=2007%2Btopps%2B170&sport=185224&year_start=2007
It seems that he never signed any of the cards that Topps sent to him (or signed stickers and returned them)!
NO PWE's EVER!!! PLZ PM me 1st before sending any offer. ONLY selling cards as of March 2024. No trades or purchases right now.
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Largest total PC card collections by Team, then Athlete (as of 3/22/24):
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