Calculation before we went digital [pdf](nicolamarras.it)82 points by nostrilwig 2 years ago | 24 comments
![Screenshot of nicolamarras.it: Calculation before we went digital [pdf]](https://hn.urlbox.com/shots/renders/2023/12/16/422e6b5a-d7bc-483b-a158-2c3bce4710a5.jpg)