That's different than what my French friend brought over. Aren't they usually quite bulkier? The ends on her chargers were large round bulky things, with the 3 narrow prongs sticking off. What she had also matched the European adapters I see sold at the electronics store here.

That’s horrible: only one is grounded? A grounded plug can only use half your outlets? Surely to multi-use outpost can also support grounded plugs?

Looks Swiss, but I see down the thread that Brazil uses a similar type.

Either way, the Swiss plug feels to me like what if you took the modest CEE 7/16 Europlug and grafted a ground pin onto that.