Year working: Working 1930's
Do we have two artists by the name of Heade? The Newnham Cars advert has Heade lower case with a distinguishing flourish to the 'e'. The Swift advert is signed with a capital letters HEADE.
Newnhams Used Cars advertisement dated 1st February 1930 Images courtesy of Will Morrison
Swift advertisement in The Autocar 21 December 1928
Swift advertisement 21 December 1928