Battenberg Course Indicator Mk III, Mounted for Display A-35 Vengeance part number 586BK-028

part number 586BK-028

such as the F4F Wildcat (as the Martlett)

It is certainly 'experienced' but that's what makes it special in our opinion

do not had a rear housing apparently by design

Even though Sweden was a neutral country during WWII

Battenberg Course Indicator Mk III, Mounted for Display A-35 Vengeance part number 586BK-028Here is an original naval Battenberg Course Indicator Mk III. The Battenberg course indicator is a mechanical calculating device invented by Prince Louis of Battenberg in 1892 for taking station on other vessels whose range, bearing, course and speed are known. By extension, it has a range of other functions related to relative velocity calculations. A number of versions of the device were produced and it proved particularly useful for station