An original 1966 Grateful Dead Avalon Ballroom poster is to feature in Christie's Out of the Ordinary sale in London.
The lot is expected to make up to £9,000 ($13,775) in the September 10 sale.
Christie's comments: "This poster marks the first use of the 'Skull and Roses' motif which became so closely associated with the Grateful Dead and remains one of the most famous and instantly recognisable images associated with any band in the history of rock & roll.
"The central skeleton and roses image was taken from an illustration by Edmund Joseph Sullivan for a 1913 edition of The Rubaiyat of Omar Khayyam, discovered by artists Mouse and Kelley when searching for inspiration in the San Francisco public library."
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