Airmatic Systems brochure
"Today, AIRMATIC tube systems are dispatching all sorts of important items - written communications, data cards, test samples, small parts, medicines, bulky securities - to and from all parts of office buildings, industrial plants, hospitals, banks, libraries, even steel mills..."You read and see more in this 8-page brochure. 
Pneumatic Tube System, Rohrpost, Buizenpost, Transport Pneumatique