Certainly is Butterworth. circa 1967. The next clue was to be the attached shot of a Lancaster, with a red kangaroo tag.
I spent three years and one hour there 1975-78. The outbound charter (QF 166 -a B707) was delayed six hours and the one hour was critical as it made me eligible for Malaysian tax. .
Officiated at a couple of ejections from RAAF Mirage during my tour, one as tower controller and one as the traffic director using the AR1 feeding to two finals controllers using SLA3/C. Both pilots suffered only minor injuries. The first had been a year ahead of me at school and when I turned around to tell the supervisor about the second I came face to face with the pilots wife who was part of "Ladies night Flying Tour".!
MJG