LOL to both, Julie and Fliss..
Here's a link from your link, Julie:
https://www.thisiscolossal.com/2020/...cealed-spaces/
My grandfather had two oil portraits (his parents) and, when he took them for a cleaning, they both had flowers at the bottom, which didn't show before. Dust has a strange and perfect way to settle, it seems. I know this is different.
The link I added is about a painter who 'erases' humans from famous paintings.
Thanks for sharing,
~mignon