Compass, Direct Reading Magnetic / Direction Indicator, US Navy ME-109 but the book itself and

but the book itself and all pages are intact and in very good condition

The character below 8 9 1 is 京 and translates to the city of Kyoto

but likely from 1955

to permit correction of the course by flight controls

The pointers move freely

Compass, Direct Reading Magnetic / Direction Indicator, US Navy ME-109 but the book itself andThis WWII era Direct Reading Magnetic Compass Direction Indicator Mark X, Kollsman 398C 01 was made for aircraft of the US Navy such as the seaplane JRF 5 Grumman Goose. The interesting aspect of the design of this compass is that the directional mechanism lies horizontally within the rear chamber, and displays the direction on a vertically mounted compass card. In addition, the desired course heading can be selected by rotating the knob at the bottom