Every so often, a geek gem is brought in for appraisal on the long-running BBC antiques show.

Theres clearly something wrong with us.

It came complete with blue pencil marks next to Hartnells lines, and its provenance was proven.

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Valuation:150k to 200k

It could have all gone in a skip.

The first was a mask worn by David Prowse as Darth Vader in the originalStar WarsfilmA New Hope.

His grandson is going to inherit it, and more such gems (see below).

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Valuation:40k to 50k

For this bit of plastic!

Valuation:60k for the collection

Just a way of saying thank you.

Valuation:60k to 100k

I painted the actual Ark itself, the big gold Ark.

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Back with the 2017 Entertainment Specials scenic painter, this is the second of Ron Punters treasures.

Ron was tasked with making a fibreglass replacement that could be carried more safely by Nicholson.

Its all going to his grandson, apparently, the lucky fellow.

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Valuation:300 500 (without scribbling on the back, 500 700)

In my view the best Doctor Who.

5-4-3-2-1, Thunderbirds are going, going, gone.

Read antiques from the past 40 years here.

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And hereshow to avoid a collecting hobby becoming a problem.

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