Originally Posted by
walschaert valve
I'm fairly sure parts of the old tower at Sydney Airport are still there, hard to see among the newer buildings built around it, but once you know it's there it's fairly obvious when taxying past.
Please feel free to correct, but I think you may be referring to the existing building known as the "old control tower", by the mouth of the Cooks River, but it is obviously not the one in the photo, hence earlier doubts. It seems that this was version 3, now replaced by the tall new tower to the east. The one is the photo was version 2, which I don't think exists today. As Dave Reid mentioned, it was of an almost identical design to Adelaide/Parafield & Brisbane/Archerfield - presumably a bulk purchase!
Old old tower v.2 (as in OP photo) camouflaged during WW2
Old tower v.3, still there