An auction house worker wears a hand-painted 'Uncle Sam' top hat owed and worn by Grateful Dead rock group's Jerry Garcia,  as she poses for the photographers, in London, Friday, Dec. 12, 2014.The bi-annual 20/21 Pop Culture sale scheduled for Dec. 16, 2014, will present music and film aficionados with memorabilia associated with legends of rock, pop and Hollywood, according to Christie's auction house.
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