Vietnam War Era Vintage US Aircraft Compass-Serial number has date of manufacture at 1-68.  Fluid has been topped up since picture was taken, so the liquid inside is now full.   Condition is amazing, with no visible wear and it operates perfectly.  This would make a great dash compass in any aircraft themed Hot Rod Build, or in any Hot Rod at all, for that matter...Screw the GPS and that "TomTom" BS, I can find my way pretty much where ever I need to go with one of these...can't everyone? It even has the wiring intact for the small light.  Cool vintage compass, for some reason I recall this might have been out of a helicopter, but I can't be absolutely sure of that.   Cool vintage piece.