Thousands of unpublished negatives of Hollywood siren Marilyn Monroe are to go under the hammer later this month (Jul13) as part of a collection which is expected to fetch $300,000 (£193,548). Around 3,700 negatives of the Some Like It Hot beauty, taken by famed celebrity snapper Milton H. Greene, will go up for auction on the 27 July, along with the copyright, so buyers will be able to print images and licence the material. The pieces are just a fraction of 75,000 celebrity negatives and slides Greene shot in the 1950s and 1960s and the archive includes hundreds of production stills of Faye Dunaway during the filming of Bonnie & Clyde and Cary Grant and Doris Day in That Touch of Mink. Green's archive, which is spread over 268 lots, is going up for sale with Los Angeles specialists Profiles in History and most of them are expected to sell for between $1,000 (£645) and $15,000 (£9,677). Profiles in History owner Joseph Maddalena said, "It's a big, big deal. It's like selling the recipe for Coca-Cola," while the company's photography consultant, Christopher Belport adds, "(This kind of sale is) nearly unheard of in a public venue, particularly for an entire archive."