Altimeter (Contact), Luftwaffe, Fl.22317 JU-87 Stuka, JU-88, Kontakt-Hohenmesser H-21 that illustrated speedometer does show

that illustrated speedometer does show a tripmeter so it only goes to assume that it had to have a reset knob like the one in our example

vertical velocity/rate of climb indicators

It is in very good condition

how they function

Likely made for an Israel Aircraft Industries (IAI) Westwind (formerly Aero Commander 1121 Jet Commander)

Altimeter (Contact), Luftwaffe, Fl.22317 JU-87 Stuka, JU-88, Kontakt-Hohenmesser H-21 that illustrated speedometer does showThis is a well worn example of the Contact Altimeter (Kontakt Hohenmesser) Fl. 22317 as used in the WWII era JU 87 Stuka and JU 88 dive bombers and some ME 110 fighters of the German Luftwaffe. See the illustration of the JU 87 blind flying panel showing the location of this altimeter. It is missing its center adjustment knob. This altimeter as designed had two hands and two front nested knobs. The white pointer indicates the aircraft altitude, from 0