Droid-
I could never tell. I probably laughed at some serious stuff that he said.
real-brisker-
He didn’t just save that receipt, he saved everything, and in an organized manner. It was fascinating looking back at all the stuff from 70 to 80 years ago that most people wouldn’t have bothered saving.
The hardware store was around the corner and looked like it was there for many years. I can’t guarantee that it was the same company (I didn’t look) but it looked like a standard switch.