The First Air Mail Marker is a plaque in West Potomac Park, Washington, D.C. It is located on east shore of the Potomac River beside Ohio Drive. The marker commemorates the first regularly scheduled United States airmail service flight.
The First Air Mail Marker is a plaque in West Potomac Park, Washington, D.C. It is located on east shore of the Potomac River beside Ohio Drive. The marker commemorates the first regularly scheduled United States airmail service flight.
Source: Wikipedia "First Air Mail Marker" · CC BY-SA 4.0
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