3 ms·
Makes me think of the Paris pneumatic post system https://en.m.wikipedia.org/wiki/Paris_pneumatic_post https://en.m.wikipedia.org/wiki/Paris_pneumatic_post
by twelvechairs 2y ago
Makes me think of the Paris pneumatic post system
https://en.m.wikipedia.org/wiki/Paris_pneumatic_post https://en.m.wikipedia.org/wiki/Paris_pneumatic_post