Is this an authentic Fall Stam? I have a new Stam, but I'm very bad at telling the authenticity of Fall Stams:
http://cgi.ebay.com/100-AUTHENTIC-Marc-Jacobs-Black-Stam-bag-amazing-bag_W0QQitemZ180011767810QQihZ008QQcategoryZ63852QQrdZ1QQcmdZViewItem
http://cgi.ebay.com/100-AUTHENTIC-Marc-Jacobs-Black-Stam-bag-amazing-bag_W0QQitemZ180011767810QQihZ008QQcategoryZ63852QQrdZ1QQcmdZViewItem