A giant version of the pneumatic cash carrier system familiar to most department store customers, the 8-inch tubes of the underground mail service resemble gas mains, the containers that glide ...

“The pneumatic tube system of communication is ... It had become cheaper to transport mail by truck than by tube, and as transactions moved to credit cards, there was less demand to make ...

Send it via pneumatic tube transport. This 170-year-old technology is enjoying a revival, as it helps companies and hospitals save millions on delivery costs. Plus: because PTT systems are ...

Remember New York City’s fantastic and amazing pneumatic tube postal system that operated from 1897-1953?: Grist thanks its sponsors. Become one. To support our nonprofit environmental ...

Following a report from the postmaster general, postal tube transport resumed ... the American Pneumatic Service, which owned all the tube systems in the U.S. except for Philadelphia’s.