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A lot of Chicago buildings had steam chutes to send mail up
by brianwawok 6y ago
A lot of Chicago buildings had steam chutes to send mail up
- Nextgrid 6y agoDo you have any links? Sounds really interesting.
- kasey_junk 6y agoDo you mean steam or do you mean pneumatic? I’ve never heard of steam delivered mail but pneumatic was really popular. https://chicagology.com/chicagopostoffice/pneumatictubesystem/ https://chicagology.com/chicagopostoffice/pneumatictubesyste...