Vendair

 VENDAIR, Croydon Airport, owned by Johnny Longmore. Suppliers of aircraft components, engines and ancilliary equipment for, British and American aircraft.

 From an aviation magazine advert of 1954
VENDAIR, Croydon Airport, offer: £595, Auster
Mk. V, low engine hours; £225, Proctor III, low
engine hours, V.H.F. available.—Vendair, Croydon 5777.

 'Percival Proctor' at Croydon 1955 with 'Vendair' markings

 (below) Vendair Chipmunk ex WB572