Doctor Who memorabilia goes under the hammer on December 18 at Bonhams Knightsbridge, London W1, to coincide with the 50th anniversary of the beloved BBC programme. One highlight is a destroyed Dalek, believed to have appeared in Remembrance of the Daleks (estimated at £4,500- £5,000). Made from wood, fibreglass, metal, plastic and foam, it stands more than 3ft tall and is thought to be the one that was blown up in the episode.

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There’s also a silver Cyberman costume from a 1988 episode, complete with laser gun and gloves, for an estimated £1,000-£1,500.

Back in the world of real, as opposed to time, travel, there’s an opportunity to bid for Antarctic Days: Sketches of the Homely Side of Polar Life, by two of Sir Ernest Shackleton’s men, at Bonhams’ Travel & Exploration sale, also at Knightsbridge, on December 4 (020-7393 3900; www.bonhams.com).

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