There's a nice documentary from 2002 about Germany's smallest bank, which also doesn't use computers: https://de.wikipedia.org/wiki/Schotter_wie_Heu https://de.

There's a nice documentary from 2002 about Germany's smallest bank, which also doesn't use computers: https://de.wikipedia.org/wiki/Schotter_wie_Heu https://de.wikipedia.org/wiki/Schotter_wie_Heu