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Mastermind

Shell Make Money and Shell Mastermind 1984

The decision to go for a promotional game had been prompted by the persistence of Don Marketing, the Essex based promotional games company, which had, for more than two years, been pressing on Shell the potential of a game to boost sales. Any doubts that Shell may have harboured about the popularity of the game with motorists were quickly dispelled when the promotion received massive press and television publicity, and sales at many petrol stations soared by more than 25%.

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