Alcan

This advert for Alcan aluminium products appeared on the back cover of a guide to the National Motor Museum at Beaulieu, published in 1972. It features Malcolm Campbell's record-breaking 350hp Sunbeam racer of 1920, from a splendid painting by Michael Turner (b.1934). The car has been part of the collection since it's arrival in 1958 and was running again in 2014, following a period of extensive restoration.

http://en.wikipedia.org/wiki/Sunbeam_350HP