WWII 1945 U.S. Army Signal Corps SA-26/U Microphone Switch – NOS in Original Box

WWII 1945 U.S. Army Signal Corps SA-26/U Microphone Switch – NOS in Original Box

Original WWII U.S. Army Signal Corps Microphone Switch SA-26/U, manufactured by the Rola Company of Cleveland, Ohio, under Order No. 253-DAY-45. The box is marked Stock No. 3Z7990-26 and retains its handwritten February 1945 packing date.

The SA-26/U was used as a microphone switching component with compatible military radio and intercommunication equipment. This example appears to be genuine new-old stock and remains sealed inside its original moisture-resistant inner wrapping with dehydrating agent. The outer factory box has been opened and displays light age and storage wear, but its markings remain exceptionally clear. The inner package has not been opened or tested.