noun
facsimile transmission; phototelegraphy
Technical term for transmitting photographs via telegraph or facsimile; now largely historical.
新聞社は写真電送で現場の画像を本社に送った。
The newspaper company sent images from the scene to the head office by phototelegraphy.
More common modern term for facsimile; 写真電送 is an older, more specific term for photo transmission.
Compound of 写真 (photograph) and 電送 (electrical transmission).