United States Air Force countdown clock, measuring 19 x 3.75 x 14.75, with an affixed red label on the front, reading, "Property of USAF PAN/AM/ASD 08(606)-68-C-0040." The digital readout is headed "Countdown 3," with labels along the bottom for "Mission," "Minutes," and "Seconds." There are three pin-type connectors on the rear that would connect to communication cables. In very good to fine condition. This clock would have been associated with various launch operations, primarily to place military payloads into space.
Terms and abbreviations used in our descriptions.