Gyro Horizon, FL22426, Luftwaffe HUP This indicator is stamped with

This indicator is stamped with the US Navy logo on it side

The side label is partially removed

Here is an interesting video describing how the K-13 functioned

This is a 1950-60's-era Attitude Gyro Horizon Indicator as used in early versions of the US Navy/Marine Corps Jet Fighter/Attack Aircraft Douglas A4D-1 Skyhawk

Rebecca is designed solely to interrogate an Eureka

Gyro Horizon, FL22426, Luftwaffe HUP This indicator is stamped withHere is a WW2 era German Gyro Horizon FI. 22426, made by Askania (Sperry), as used in aircraft of the Luftwaffe, such as fighter ME 110 and bombers JU 88, HE 111, and HE177. It is an exceptional specimen. See photo of HE 111 instrument panel.