ECN Forum Forums General Topics of the Trade Non-US Electrical Systems & Trades History of the Australian plug

I'm assuming these were the precursor to the T-slot... I've found these oddities in turn of the century houses and buildings... this one shows a sole rating of 10A 250V




Then there's the T-Slot/Aussie combo I found in a 1920's liquor store.. Made by Hubbell




On the back it doesn't mention anything about grounding like the combo unit PaulUK posted above... It just shows "2 wire terminals" and "3 wire terminals"