How could PSA grade this a 4 when it is missing the bottom portion of the card with the team name?http://cgi.ebay.com/1919-W514-35-Lefty-Williams-BLACK-SOX-PSA-4-1-2-graded_W0QQitemZ8727046546QQcategoryZ31718QQssPage NameZWDVWQQrdZ1QQcmdZViewItem