Battenberg Course Indicator Mk III, Mounted for Display A-35 Vengeance The float is suspended so

The float is suspended so that the needles are free to align themselves horizontally with the earth's magnetic field

and B-29 Superfortress

with a Serviceable Part tag dated Aug 1945

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

part number 586BK-028

Battenberg Course Indicator Mk III, Mounted for Display A-35 Vengeance The float is suspended soHere 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