Where do you think he got the scan? from someone's registry or from the internet? I found the actual photo he is using on google in about 30 seconds on my 2nd search for "PSA 8 mantle"
see:
http://www.flickr.com/photos/sportsc...ly/3317791747/
He clearly ripped off the photo from that story. Make sure you don't pay him !
The photo belongs to From SportsCollectorsDaily.com - same serial number
So, he can also be sued for copyright infringement in addition to you sticking it to him !
Greg