In my baby pilot days at Peters Aviation we had the National Coal Board DH Dove, a Cessna 421 which I think belonged to Brown and Root, the Nuclear Power Group Heron G-ANUO and the aircraft belonging to the Nolty J Theriot tugboat company initially a Hansa Jet and then a pressurised Navajo which I seem to recall operated as Flying Titanic Airlines. Air Anglia Executive looked after Reckitt and Colman’s Navajo and the famous PA31 G-OLLY belonging to Robertson’s Jam