Servo unit for Mark-4 automatic pilot part 64423/88-S-250 sperry gyroscope

Vintage Lord Plate Form Mount 150PH6 - Packaged for Sperry Inst. P/N 417504-8

WWII SERVO UNIT FOR MARK-4 AUTOMATIC PILOT 88-S-250 SPERRY AUTO-LITE 2905

Sperry Gyroscope CO., Directional Gyro P/N: 643715 (EB2505151569B) SN- 22543

Sperry Gyroscope CO., Directional Gyro P/N: 643715 (EB2505151569A) SN- 27121

Vintage Sperry Aircraft Gyroscope Ottawa Limited For Parts Or Repair Untested

Aircraft Venturi Tube Sperry Gyroscope Company P/N 640600

Microline Model 146 Impedence Meter Sperry Gyroscope Base