Name/Title
Harlingen Air Force Base [Cover]Description
Military Post Mailing Cover - Double Cancel: the “Last Day” of the Army Gunnery School Post Office on June 30, 1940 and the “First Day” of the Air Field Post Office on July 1, 1940.Context
The field began operations as a gunnery school specializing in training for high and low aerial gunnery and in B-24 transition training on August 3, 1942.