Directional Gyro, RAF Mk IB, Ref 6A/1666 1945 NOS F6F Hellcat This instrument seems to have

This instrument seems to have had a very interesting history

USN) and has a service label dated May 1966

and is read through a glass cover on the top

by turning the center knob

The glass is show a little haze which could be readily cleaned if opened

Directional Gyro, RAF Mk IB, Ref 6A/1666 1945 NOS F6F Hellcat This instrument seems to haveThis is an interesting WWII era Directional Gyro, labeled for the British RAF as Gyro Mk IB, Stores Reference number 6A 1666, with a year of manufacture of 1945, and the late war Air Ministry upward arrow symbol on its data label, made by the US manufacturer Sperry in New York. It is new old stock, but out of its box. It is very similar to the US spec Directional Gyro AN 5735 2. What makes it particularly interesting is the white anchor stamp for the