A little off topic, but here's a vintage outlet you might find in that house that had that vintage pre-color B&W TV set.
Turns out that power plugs from Australia will fit perfectly into this outlet. This one is in my mom's place, and is wired up to 240V 60Hz @ 15A. So that that Aussie plug would feel nearly at home in it, except that both current carrying pins (the slanted ones) are hot with 120VAC instead of one a neutral and the other being the hot at 240V 50Hz. This Australian radio
is happy with this American fed American made outlet. No Aussie TV sets though, I'd need a source of PAL for them...
My college dorm had outlets like these in the laundry room. This dorm, Shaw Hall of Syracuse University, was built in the early 1950s.