Compass, Magnetic, FL23233, Luftwaffe

Here is a WW2-era German Magnetic Compass FI.23233, made by Ludolph, as used in aircraft of the Luftwaffe.  The fluid has turned cloudy brown, but it remains an exceptional specimen.  According to Aircraft-Cockpits.com, this compass was used in aircraft Ar79, He72, Ju52, Klem KL35, Bf108D, Ar234B-1, Bu181, DFS 230, and Fi156.