Control Wheel / Yoke, B-26 Martin Marauder Medium Bomber F-84 The seal around the glass

The seal around the glass is absent

Here is a Vertical Gyro Control of the Sperry A-12/Gyrosyn Automatic Pilot

Hydraulic Pressure

and markings are all intact

"Station") per that indicated in the Next Station window

Control Wheel / Yoke, B-26 Martin Marauder Medium Bomber F-84 The seal around the glassHere is an exceptional specimen of a Control Wheel (aka Yoke) used in the WWII era medium bomber B 26 Martin Marauder of the US Army Air Force Air Corps. See the image from the B 26 Flight Manual dated April 1945. Notice the raised letters "UP" at the top of each side of the yoke, most likely for the benefit of the installers.