"I was doing a VR tour of the Anne Frank home and I saw this object with a wheel and cord"
A: "It’s a dental drill, with a foot treadle. One of the people in the Annex was a dentist, so that makes sense."
this is all lifted from a reddit thread.
https://www.reddit.com/r/whatisthisthing/
https://www.reddit.com/r/Whatisthis/
Most humor sites repost reddit stuff.