SIGNAL CORPS RADIOSONDE TRANSMITTER AN/AMT-4B Oversized The steel body shows light

The steel body shows light surface patina

Shows cosmetic wear consistent with age and military use

Stevens Arms Company (later acquired by Savage Arms in 1920)

creating the 30AS

SIGNAL CORPS RADIOSONDE TRANSMITTER AN/AMT-4B Oversized The steel body shows lightSIGNAL CORPS RADIOSONDE TRANSMITTER AN AMT 4B FRIEZ BENDIX AVIATION Original U. S. Signal Corps Radiosonde Transmitter AN AMT 4B, made by Friez Instrument Division, Bendix Aviation Corporation. This balloon borne weather transmitter was used to send atmospheric data from high altitude back to ground stations. Amber translucent body with cone shaped nose, original wiring harness, plug, and visible military markings. Marked Signal Corps, Radiosonde