What was old is new again:<p>> Pneumatic tube mail in New York City<p>> <a href="https://en.wikipedia.org/wiki/Pneumatic_tube_mail_in_New_York_City" rel="nofollow">https://en.wikipedia.org/wiki/Pneumatic_tube_mail_in_New_Yor...</a><p>> The pneumatic tube mail was a postal system operating in New York City from 1897 to 1953 using pneumatic tubes