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Mexican artist's 5cm by 4cm self-portrait, originally a gift for one of her lovers, put on sale at Sotheby's in New York
The familiar thick eyebrows joined at the bridge of the nose are there, as are the trademark haughty stare and the scraped-back hair.
The startling thing about the latest Frida Kahlo self-portrait to come up for auction is its size. The Mexican artist's Autorretrato en miniatura – self-portrait in miniature – measures just 5cm by 4.2cm.
Despite its lack of size, it is being sold at Sotheby's in New York on Wednesday night with an upper estimate of $1.2m (£740,000).
The locket-sized picture – thought to be the smallest painting Kahlo made – was originally a gift to one of her many lovers, the Catalan artist Jose Bartoli.
In it, she wears a red Tehuana blouse, silver earrings, an exotic necklace – and a characteristically defiant aspect. It is signed with the pseudonym Mara and dedicated, on the reverse, to "Bartoli con amor".
The two began an affair in the mid-1940s, which continued for years before Kahlo's death in 1954 at the age of 47.
Carmen Melián, head of Sotheby's Latin American art department, described the miniature as "one of the sexiest Kahlos" she had seen. "She is sending it to her lover, so she is presenting her best face forward," said Melián.
"Instead of looking straight on to you as she does in a lot of paintings, she looks to the side. In some of the other paintings with sideways glances, her eyes are kind of dead – but here they are coquettish."
In the miniature, Kahlo portrays herself as glamorous, unlike other better-known works which show her in tears or spilling blood, an allusion to lifelong suffering from a teenage accident which broke her spine and pelvis.
According to Sotheby's, the auction record for a Kahlo work is $5.6m (£3.5m) for Roots, an oil on metal sold at the auction house in May 2005.
In May last year, another small Kahlo work – Survivor – fetched $1.1m at Christie's against a pre-sale estimate of $100,000-$150,000.
