What pneumatictubes.info is

Urban pneumatic post, documented.

pneumatictubes.info covers urban pneumatic postal systems, and the hospital/warehouse industry that shares a pressure gradient with them as a separate living industry. It is a reference site, not a journal, a vendor, or a gift shop.

Coverage is the documented city networks, with photographs under open licences.

Citations are on Sources. New York statistics come from Smithsonian / National Postal Museum captions, including the cases where those captions disagree. Hospital pneumatic tubes are a separate living industry. Map posters are coming soon.

Corrections welcome.

1907 encyclopedic diagram of a pneumatic post apparatus — A 1907 lexicon plate of a pneumatic-post apparatus.

On the site

Mechanics, New York, Vienna, other cities, philately, why the networks ended, the hospital remnant, news, sources, and a coming-soon shop.

What it is not

Not a complete world gazetteer, not a speed calculator, and not a place to buy a mail rocket. City postal networks and hospital PTS are separate subjects.

Reuse

Prose: use it, quote it, correct it. Images remain under their own licences — see CREDITS.md. The 2025 Austria Post stamp is on the Vienna page and on PostAG; image notes are in CREDITS.