Those two connections look really consistent... I bet there are a bunch more just like them in the rest of the house.

Look at the old Bakelite box, I wonder where the equipment ground is?

Pierre

Pierre just caught what I was waiting for someone to notice...

I ended up installing a GFCI in the next outlet before this one since this was a kitchen anyways... putting it behind the fridge might be kind of annoying

-Randy

Solar,
I looked around this house for anything similar to the Sierra outlet here & didn't find any... The kitchen had been remodeled, but no one ever bothered to change out this outlet... (outta sight, outta mind! :rolleyes

-Randy

Not to mention it's solidly painted.

Last week I had a look at the wiring at my grandmother's place in Germany. About every single screw in the apartment was loose! I spent several days opening every single switch, receptacle, plug, power strip, trailing socket,... to retighten all screws. 2 plugs were already noticeably burnt from screws that were not only loose but obviously never had been tightened at all!
Not to mention the box with double light switch and grounded receptacle with only black and grey wires inside (all black including the ground and a grey neutral)... or the brown ground wires in the bedroom...