WW2, U.S. ARMY, SIGNAL CORPS, Field Telephone Equipment Display for Inspection, 8x10 Photo 二戰，美國陸軍，通信部隊，野戰電話裝備檢查，8x10 照片《Black Water...

1943, U.S. ARMY, SIGNAL CORPS, TELEPHONE EE-8-A, Kellogg Switchboard and Supply Company 民國32年，美國陸軍，通信部隊，EE-8-A 野戰電話，凱洛格交換機及供應公司《Black...

1945, U. S. Army Signal Corps TELEPHONE TP-9, SN.10632, ORDER NO. NOm-47125, Federal Telephone & Radio Corp. 民國34年，美國陸軍，通信部隊，TP-9...

1943, U.S. NAVY, A.B. Portable Tel. System Type-MCT-1 Field Phone SERIAL NO.1392S-3,DICTOGRAPH PRODUCTS. INC.,BUREAU OF YARDS & DOCKS...

WWII, US Army Signal Corps BD-71 (6 LINES) Field Telephone Switchboard 二戰，美國陸軍通信部隊，BD-71 6線野戰電話交換機《Black Water Museum Collections |...

EE-8 野戰電話上的聽筒與現代電話類似，差別在TS-9型話筒上有一個蝴蝶型通話鈕，說話時再打開可節省電池電力，雙向通話，結構堅固耐用，多數話機至今仍然可以正常工作。

WWII British Telephone Set F. Mk. II., 1940, T.M.C. (Telephone Manufacturing Company Ltd. London) | Black Water Museum Collection

WW2 1938 BRITISH ARMY FIELD TELEPHONE SET D MKV | Black Water Museum Collection