Compass, Direct Reading Magnetic / Direction Indicator, US Navy ME-109 a small pointer which travels

a small pointer which travels the perimeter of the compass card

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

to permit correction of the course by flight controls

Altitude was indicated from 0-10

Compass, Direct Reading Magnetic / Direction Indicator, US Navy ME-109 a small pointer which travelsThis 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