WWII German Luftwaffe Wrist Flight Compass. MINT LW flight compass, looks unissued, and I doubt it was ever was. This one has a near perfect strap, and what makes this rare, is it comes with the rare and hard to find extension strap, this extra strap extension was used when the piloet wore several uniforms, tunic, flight suit etc. and the extra strap gave a longer fit, also used with the heavy winter outfits because of the large cuffs, it would allow it to fit the bigger, thicker sleeves. Compass works fine, fluid intact and both pointers there. Marked on the back Model AK 39 FI 232235-1. Then there is the hand written serial number. I don't even see any scuffs on the lens, its unissued! VERY NICE!