My educated grandma was a physicist in USSR who coded on punch cards who brought home her programs for note taking. I've taken so many notes on those, learning

My educated grandma was a physicist in USSR who coded on punch cards who brought home her programs for note taking. I've taken so many notes on those, learning how to write around the holes. Weirdly enough I found one of her cards in some box that we brought here to USA and gave it to my wife, she has it in her art supplies. That thing is like 70 years old, and I love looking at it!