05/24/2010 02:44 pm ET Updated May 25, 2011

Sherlock Holmes Debut Book, 'One Of The Rarest Books Of Modern Times,' Up For Auction

The copy of A Study In Scarlet, the debut novel by Sir Arthur Conan Doyle, is one of only two inscribed examples known to exist.

Sotheby's will auction the work, which it described as ''one of the rarest books of modern times'', in London this summer.

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