File:1970s mastermind tone generator.jpg
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From the collection of the National Science & Media Museum, the button that Mary Craig had to press to indicate the end of a round on Mastermind.
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| current | 22:47, 9 January 2022 | | 693×535 (74 KB) | Jturner (Talk | contribs) | (From the collection of the National Science & Media Museum, the button that Mary Craig had to press to indicate the end of a round on Mastermind. ) |
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