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John Salmon, the former chairman of CDP who stepped down to take a part-time role as its president and creative advisor in 1995, has retired after more than 25 years at the agency. He was behind the famous Benson & Hedges 'pure gold' campaign in the 70s.

John Salmon, the former chairman of CDP who stepped down to take a part-time role as its president and creative advisor in 1995, has retired after more than 25 years at the agency. He was behind the famous Benson & Hedges 'pure gold' campaign in the 70s.