Amplion has always been an interesting company to explore. Originally a 1920s British maker of loud speakers, public address systems and wireless receivers, Amplion would be sold world-wide.
Amplion was a subsidiary of Alfred Graham and Company. Their company history is complex and I do not profess to understand it.
Amplion certainly had an Australian presence from about 1926. My best guess is that Amplion (Australasia) was an arrangement for a totally separate entity. This enabled Amplion in Australia to expand into diverse areas.
I have no evidence that this mower entered production for sale within Australia. The design – with 4-point height adjustment, side discharge, and no catcher – was way out of date for 1960s Australia.
It was a surprise to find that this Amplion appears to have entered production, but sold overseas to the Pacific Islands. A lucky find of two ads in Pacific Island Monthly of February and April, 1959, confirmed this. Note the different top handles in the earlier ad.
Note that Dupain’s beautiful studio images were intended for and put to good use as print illustrations.