Presuming he is the owner of the card, and picked it up from the Spring Memory Lane auction here just a few weeks ago:
http://www.memorylaneinc.com/site/bi...emid=23644#pic
where he spent $3.5k... and with the card sitting at $316 for 2 days... I don't know about you, but I want as many bidders as possible. In fact, an SGC 60 Brunners Mathewson went for $45k just four years ago.
He could be legit, but his most recent feedback is for buying a few cheap autographed balls (multiples of Mariano Rivera), and some running shoes and accessories.
I don't think it was out of the ordinary for me to ask for a picture of the card next to a piece of paper with his eBay name. Extra hassle... sure, but worth getting another bidder? absolutely. Especially when his scans are identical to the Memory Lane and Huggins and Scott auctions.