Hydrographic Station Pointer in Wooden Case, Nautical P-63 The artifact is labeled as

The artifact is labeled as a war bring-back as having been extracted from a JU-88

The US Army Type B-7 Engine Gage Unit was used across a variety of aircraft of the US Army Air Force during WWII

It is about 3/4 inch thick

the indicator displayed the pressure being applied to the rubber surface de-icer boots along the leading edges of the wings and empennage to dislodge ice which has formed

23825 as used by pilots and navigators of the German Luftwaffe during WWII

Hydrographic Station Pointer in Wooden Case, Nautical P-63 The artifact is labeled asThis Hydrographic Station Pointer was used in coastal navigation to determine the position of a sea going vessel and to chart coastlines. It consists of a fixed arm secured to a brass circle and two movable arms that can be adjusted to angles determined by a sextant. Three arm extensions are in included in the kit. More about how it was used can be found here. Although not specifically labeled, we believe it to have been manufactured by Kelvin and