Two extremely unusual spirit flasks are for sale in Bonhams' collectible Silver auction on June 30.
Made in 1884, they are in the shape of fierce-looking crocodile heads with open mouths and lolling tongues mounted on ibex horns.
They are the work of master silversmiths, Sampson Mordan & Company, which made its name through manufacturing small luxury items such as the first propelling pencils.
"It's very rare to find objects this large by Sampson Mordan," said Bonhams' Silver specialist Michael Moorcroft.
"I can only assume they were a special commission perhaps for a gentleman's library or study."
They are priced at between £10,000-12,000.
The sale also features a rare and charming George III eighteen carat gold and coral mounted child's rattle which was probably made for presentation only as it seems never to have been used (£10,000 - 15,000).
Also appearing is a mid-18th century tortoiseshell and silver box with the inscription of Frederick, Prince of Wales the eldest son of George II who died in 1751, before his father, and so never became King (£800-1,200).
The box once belonged to Princess Mary, (Princess Royal and the Countess of Harewood), the only daughter of George V and Queen Mary and, therefore, aunt to the current Queen.
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