Open call for obsolete sounds! This project is really fascinating. They're requesting recordings of sounds from our environment, old tech, etc. that are no longer commonplace and then those will be reimagined by sound artists "to draw attention to the world’s disappearing soundscapes." https://citiesandmemory.com/2022/05/open-call-your-field-recordings-of-obsolete-sounds-wanted/
Open call - your field recordings of obsolete sounds wanted!

Recordings of disappearing, obscure and obsolete sounds wanted for new global collaborative sound project Obsolete Sounds.

Cities & Memory | Field Recordings, Sound Map, Sound Art
@jc Ooh! I was just lamenting earlier today that while you can find pictures of old style library cards and the "card charging machines" that used the cards and a thumbwheel set date to eat a chunk out of the card from the pocket of a book and stamp the patron number and due date on the next line, I could not find video of one operating or a recording of the delicious kerchunking noise it makes... (photos from https://twitter.com/SchlowLibrary/status/827104471717146624)
Schlow Centre Region Library on Twitter

“Anyone else still have card for our @GaylordArchival Model C Book Charger? Loved #KaChunk noise they made. #ThrowbackThursday #60YrsOfSchlow”

Twitter
US3058416A - Book charging machine or the like for library and other uses - Google Patents