Hi, I have had this compass for a long time and it came to light the other day. I would be most greatfull for any information that you can provide re its use etc. Please.
Regards and best wishes Michael R

Vehicle or Aircraft Compass.  Or what??Vehicle or Aircraft Compass.  Or what??Vehicle or Aircraft Compass.  Or what??Vehicle or Aircraft Compass.  Or what??Vehicle or Aircraft Compass.  Or what??Vehicle or Aircraft Compass.  Or what??