The Tempscribe was a popular circular chart recorder used from the 1930s to 1960s. It winds up like a clock, and draws a graph of the temperature over time.
Here is a short video about the Tempscribe:
The tempscribe uses its own special paper which can be hard to get online. I only have originals of the two charts below. If you have originals from a different chart model, I'd love to see them so I can reproduce them too!
I am releasing these into the public domain: anyone has my permission to do whatever you want with them.