Pneumatic tube mail in New York City
https://en.wikipedia.org/wiki/Pneumatic_tube_mail_in_New_York_City
Comments: https://news.ycombinator.com/item?id=49225895
#HackerNews #PneumaticTubeMail #NYC #History #Innovation #UrbanTransport
#pneumatictubemail — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #pneumatictubemail, aggregated by home.social.