Observed arrival · 2026-09-06
The Brass-Pipe Postal Archive
A focused history of pneumatic postal networks, from New York and Vienna to Paris, Prague, and the hospital systems that outlasted them.
Field notes
The site separates two related technologies: municipal postal networks that moved letters and telegram copies beneath cities, and building-scale systems used by hospitals, warehouses, banks, and department stores. Its comparisons include New York's approximately 35-mph canisters, Vienna's 65-millimetre tubes, and Prague pipes reportedly flooded since 2002. The homepage also notes that European letter tubes and American bulk tubes were not the same machine, resisting the usual single-story treatment of pneumatic mail.
Observed signals
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Editorial observations of this landing page, not a rating.
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