Apollo Command Module Gyro Display Coupler manufactured by Honeywell, 19.25 x 6 x 6, with an affixed parts label reading, “Gyro Display Coupler, NAA/S & ID Control No. E901-0707-0021, Mfr Serial No. EM-1, Mfr Part No. FBG289A1, Contract No. M5J7XAZ-450012A, Mfr Date Sept. 1965.” The unit has a thick gray metal housing stenciled in red, “Non Flight, Do Not Apply Power,” with a red-capped output near the parts label and two yellow-capped inputs on the top of the opposite end. Scattered marks, dings, and soiling, otherwise fine condition. The Gyro Display Coupler was used to give a reading of the spacecraft's actual attitude compared to its intended altitude, allowing the crew to maneuver and stay on course. Please contact RR Auction for a shipping quote.
