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The Sigma File (Condor) 1974 magazine advert
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British Christmas promotion of lots of games. Sigma File (Condor) 1973 advert
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Sigma File (Condor) 1973 Header to an article by the game's designer, probably canvassed by the publisher because this was an unusual and brilliant idea at the time.
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Sigma File (Condor) List of the secret agents in the game
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Games & Puzzles issue 12, April 1973
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content - Dutch (Clipper) edition
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cover - Dutch (Clipper) edition
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The characters in the first British edition, by Condor
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Spies of german Amigo version
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Box content of german Amigo version
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Box back of german Amigo version
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Box front of german Amigo version with 'Spiel des Jahres' logo
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