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Sindy celebrates her 40th birthday in an exhibition at the National Trust's Museum of Childhood in Derbyshire.

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The famous doll began life in 1963, and the first ever Sindy was a redhead

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.... but Sindy changed her hair (as well as her clothes) many times over the years...

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... and like many blondes, had more fun

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Sindy enjoyed outings with her long term boyfriend Paul (before he was replaced in 1996 by Robbie)

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Nowadays, Sindy has slimmed down... to keep up with modern times