Single-barrelled 28-bore made in 1877 for one of the sons of Prince Duleep Singh – £20,000 At Bonhams on December 3.

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This was specifically designed for a child, with 2ft ¼in barrels and weighing just 3lbs.

Duleep Singh arrived in England at the age of 15 and quickly took up the aristocratic pleasures of driven game shooting. He became one of the renowned shots of his day and his feats were rivalled by his two sons.

Following his purchase of the Elveden Hall Estate in Norfolk, he set numerous records for numbers shot which are never likely to be beaten, notably a bag of more than 10,000 head shot over just three days.

The sale took place on December 3.