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Creator:
Smithsonian Insider  Search this
Type:
Blog posts
Smithsonian staff publications
Blog posts
Published Date:
Wed, 12 Oct 2011 20:46:14 +0000
Blog Post Category:
History & Culture
Snapshot
National Postal Museum
Description:
Pneumatic Mail Container, 1953 In the late 1890s, networks of pneumatic tube systems were installed under city streets to move the mail. Each pneumatic tube […]
Topic:
Science  Search this
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Smithsonian Insider
Data Source:
Smithsonian Insider
EDAN-URL:
edanmdm:posts_156119a64c12ac6caf0afb95cbcb0385