Photograph of an AACS (Army Airways Communications System) direction finding installation in Changyi, China, circa 1940s.Typed on verso: "Above is a Direction Finding Installation at Changyi, prefabricated in the United States and sent over 'The…
Photograph of an AACS (Army Airways Communications System) control tower at Luliang Air Base, China, circa 1940s.Typed on verso: "This is the AACS Control Tower at Luliang, near Chengtu. During the war this tower rendered efficient service in the…