
Zero Reader Flight Director Indicator
- Made:
- 1920-1970

Zero Reader Flight Director Indicator. By Sangamo Weston for Sperry Gyroscope Co. Pt. No. 16611. 6A/3119. Weston Model S139-7-13. No. AC23921.
Zero Reader Flight Director Indicator. By Sangamo Weston for Sperry Gyroscope Co. Pt. No. 16611. 6A/3119. Weston Model S139-7-13. No. AC23921.