Stolen scan. Front is from Mastro's auction (April 2004). Back pic is from an REA auction (2008) Lot #151 which actually featured a PSA 7 M101 Ruth. Thus, this scammer is banking on a check for payment. NO SOUP FOR YOU if paying in person!
http://www.psacard.com/smrweb/backis...0804/26623.jpg
http://www.robertedwardauctions.com/...em_10233_2.jpg
Took me 30 seconds. Just google "1915 m101", select images only and it's item #001 and #003 in the images screen.
Lovely Day...