1916 ad chides Congress for not investing in pneumatic tubes for first class mail delivery

[Brainspore]

@Grey_Devil

Also if you have odd sized envelopes that can’t be folded you’d need to mail it the usual way so it seems like it’d be more straightforward to just have a guy deliver the mail, even if it is slower.

Forget mail. I just want one of these systems to deliver burritos.