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Building underground tunnels for 30 second delivery times
- pwg 6y agoWhat was old is new again: > Pneumatic tube mail in New York City > https://en.wikipedia.org/wiki/Pneumatic_tube_mail_in_New_York_City https://en.wikipedia.org/wiki/Pneumatic_tube_mail_in_New_Yor... > The pneumatic tube mail was a postal system operating in New York City from 1897 to 1953 using pneumatic tubes