The 'Club' was an informal group of industrialists, economists, planners, scientists etc which sought a less ideological and political basis to global policy-making. The British Group was founded in 1978 and chaired by Sir Monty Finniston. Nicholson advised the Group and attended at least one dinner, though it is unclear whether he held an official position within it.

Correpondence and papers regarding the formation of the British Group and related matters, including typescript notes and drafts by Nicholson.