USAAF navigation drawing set
Part number AN5749-1. Velvet lined leatherette case containing a pair of drawing compasses, each approximately 17cm in length. Both are still wrapped in greaseproof paper but they do have light surface marking/corrosion. With screwdriver for making adjustments - the top of which which unscrews to reveal spare compass pins. The case is is grubby but complete and in good condition. Used by navigators when plotting flights on maps etc. Stock code M22292.