The pair of Lalique amethyst glass Longchamp car mascots of the rare double mane variant that sold for £17,000 at Chiswick Auction Rooms.

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The 5in (12cm) model comes in two types: one with a single mane, known as Longchamp 'B', and another with a double mane dubbed Longchamp 'A ' that had an earlier and remarkably short production run of just three months between June and September 1929.

They are very rare, but, courtesy of a vendor in Fulham, two turned up at West London's Chiswick Auctions (20% buyer's premium) on March 23.

Both had small chips but they were particularly desirable for their frosted pale amethyst colour. The signature R. Lalique, France, is moulded to the circular base.

Specialists queued to buy them at their pre-sale estimate of £500-800, but ultimately they sold in the room at £17,000.