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United Store and Tube Company Inventors, Builders and Experts All standard types of store service apparatus and pneumatic despatch tubes.
Double-frame skeleton tube
A section of the double-frame skeleton tube. The small picture shows a post carrier being started with its load.
The dedication of the Boston Postal Pneumatic Tube System
The Pneumatic Tube Service New York - Brooklyn
At the picture has been mentioned: Photo Courtesy Albert Goldman Postmaster, New York City
Tube transit cover Chicago 8 October 1910
Postcard from Baton Rouge to Chicago. There forwarded on 8 Oktober 1910 by the Chicago Western Tube to the post office in Charlotte, North Carolina. The corresponding stamp from Chicago documents the treatment of the shipment.
United States Post Office Pneumatic Mail Tube Terminals
General Post Office New York NY
5,000,000 letters sent daily throught underground Pneumatic Mail Tubes in New York city. Sequi-Centennial, Philadelphia 1926.
Unloaded carrier with its load: letters and parcels