Wow! That’s awesome! I always went to a school where the alarms and bells were just sounds from a speaker. There’s something special about hearing the real thing!
They would pick a boy, usually from the top in the class, and he would walk down the halls with a teacher while turning the crank. It had a neck and belt strap and was removable from the stand....
I just looked and the pics of Glen Iris School on the internet are not the same one I went to. It apparently has been remodeled or rebuilt. The one I attended in 1969 was circa 1930’s vintage school design..............