It goes back to the 1960s TV show, "The Prisoner".[1] In the village, all signage and maps are lower case only, and in a unique font.
[1] https://www.youtube.com/watch?v=osNmf_zmSyE
bauhaus in 1925 has been linked in a peer comment.
i've got a 1926 print book is 5 by e e cummings who famously often used lowercase in his prose and poems ... going back earlier than the collection i have.
* https://en.wikipedia.org/wiki/Is_5
* my sweet old etcetera - https://web.archive.org/web/19991008163420/http://www.geocit...
still, as you're a fan of that 1960's show ... here's a few samples: https://www.youtube.com/watch?v=9dm_iq5OicM (1985)
bauhaus in 1925 has been linked in a peer comment.
i've got a 1926 print book is 5 by e e cummings who famously often used lowercase in his prose and poems ... going back earlier than the collection i have.
* https://en.wikipedia.org/wiki/Is_5
* my sweet old etcetera - https://web.archive.org/web/19991008163420/http://www.geocit...
still, as you're a fan of that 1960's show ... here's a few samples: https://www.youtube.com/watch?v=9dm_iq5OicM (1985)