PHILADELPHIA, PA - SEPT 2: Simeone Museum shows a 1963 twin engine Triumph motorcycle , it's one of 7 ever built. September 2, 2011 in Philadelphia PA.
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PHILADELPHIA, PA - SEPT 2: Simeone Museum shows a 1963 twin engine Triumph motorcycle , it's one of 7 ever built. September 2, 2011 in Philadelphia PA.