FACSIMILE SET AN/TXC-1 (*)
Year 1955

Facsimile Set AN/TXC-1(*) is an electromechanical-optical facsimile set of the revolving drum type for the transmission and reception of page copy.
It is used for transmission of maps, photographs, sketches, and printed and handwritten text over regular voice communication channels, either wire or radio,
between fixed stations. Although colored copy maybe transmitted, the reproduction is always in black, white, and intermediate shades of gray. Received copy is recorded either directley on chemically coated paper or photographically in either negative or positive form. The equipment will transmit or receive a page of copy 12 by 18 inches in 20 minutes;Facsimile Set AN/TXC-1D, -1E, -and 1F have provision for transmitting or reciving copy at half speed.Facsimile Set AN/TXC-1(*) maybe used with either wire or radio communication circuits.

DEPARTMENT OF THE ARMY TECHNICAL MANUAL TM11-2258
DEPARTMENT OF THE AIR FORCE TECHNICAL ORDER TO31S2-2TXC1-1

.