This authentic black & silver Harley-Davidson gas tank was autographed at Summerfest 2008. 

The autographs on this Harley-Davidson gas tank were acquired at Summerfest 2008 in Milwaukee, Wisconsin.  MDA was told by Summerfest that the following artists autographed the tank:  Pat Monahan and Phil Vassar.   MDA compared the signatures on the tank to autographs from the artists on other memorabilia and it appears that both artists signed the tank.  (A letter stating the description listed above will be included with the tank.)