Thanks
Gne I enjoyed your challenge. Rather unsettling having an engine test facility in the basement of the Control Tower......." Laverton Tower - How do you read me ? I say again......"
During the course of my search I came across this delightful study from RAF Changi:
The Duty Air Traffic Control Crew with Flt Lt Hargreaves on the extreme left circa 1952. Photo credit Royal Air Force Changi Association.