Trim Position Triple Indicator, Rudder, Aileron, Elevator GE DJ-3 Model 8DJ3ECC
This is a triple Trim Tab Position Indicator, made by General Electric, Type DJ-3, Model 8DJ3ECC, likely from the 1950's and used in US Navy aircraft judging from the blue/green of some of its lettering and the presence of a USN stock # (R88-I) etched on the top edge of the case. Measures 3.25in diameter and ~2.75in deep. It is in exceptional condition given its age. The dial markings are clear and the glass and case are intact.