A Braise crocodile 'Birkin' bag. Hermès, 2009. Photo: Christie's Images Ltd., 2010

Gilt metal hardware, with padlock, keyfob, raincovers and dustbag, Crododylus Porosus, 30 cm. Blindstamp M. Estimate £35,000 - £40,000

A Matte Paille alligator 'Birkin' bag. Hermès, 2009. Photo: Christie's Images Ltd., 2010

Silver palladium hardware, with padlock, keyfob, dustbag and raincovers lligator Mississipiensis, 30 cm. Blindstamp M. Estimate £32,000 - £38,000

A Miel crocodile 'Birkin' bag. Hermès, 2009. Photo: Christie's Images Ltd., 2010

Silver palladium hardware, with padlock, keyfob and dustbag, Crocodylus Niloticus, 30 cm. Blindstamp M. Estimate £30,000 - £35,000

A Bleu Abyss crocodile 'Birkin' bag. Hermès, 2010. Photo: Christie's Images Ltd., 2010

Silver palladium hardware, with padlock, keyfob, raincovers, dustbag and box, Crocodylus Porosus, 35 cm. Blindstamp N. Estimate £30,000 - £35,000

A Violet crocodile 'Birkin' bag. Hermès, 2010. Photo: Christie's Images Ltd., 2010

Silver palladium hardware, with padlock, keyfob, dustbag, raincovers and box, Crocodylus Niloticus, 30 cm. Blindstamp N. Estimate £30,000 - £32,000

Christie's. Jewels at South Kensington including Fine Hermès Handbags. 14 July 2010. London, South Kensington www.christies.com