Air Position Indicator System Computer 12580-3-B & Manual T.O. 5N-3-1-31 PZL The metal seal is in

The metal seal is in place in the lower right of the case

but comes with a replacement crank (the stem of the damaged crank remains on the shaft and we have elected not to try to remove it so as not to cause damage)

as is the glass inclinometer

This indicator has a label of Cherry Point

Air Position Indicator System Computer 12580-3-B & Manual T.O. 5N-3-1-31 PZL The metal seal is inThe Air Position Indicator System was an advanced navigational system introduced during WWII in later versions of the Boeing B 29 Superfortress Bomber by the US Army Air Force, including the Enola Gay (see API on navigator's panel). This electro mechanical system computed positions based on a series of dead reckoning inputs. The system maintained a continuous indication of the latitude and the longitude of the air position at any instant, as well as