PNEUMATIC TUBES atomic-flash: Helen Soros works the new pneumatic tube system to take cash at Marshall Fields store in Chicago, November 1947
The Pneumatic Mail Networks Hidden Under City Streets. Before email, even before mail trucks, there were underground pressurized air tubes that shot cylinders full of letters around a city.
Product Line: CONNECTORS. Product Family: KQ ONE TOUCH FITTING. Product Class: KQ KQ uni-fit one-touch fittings only require hand tightening to assemble and a snug of the wrench to attain a positive seal in of the time of conventional fittings.
The crazy story of the first pneumatic mail service. When the streets of New York are being dug up you can occasionally see remnants of the pneumatic tubes.
The pneumatic tube's strange journey: Pneumatic tubes have been moving mail, people, and cats for more than a century.