YOU ARE BIDDING ON A VINTAGE WWII ERA 1943 STANDARD OIL SOHIO AVIATION FLIGHT CALCULATOR. IT IS IN NICE CONDITION FOR ITS AGE, ONLY LIGHT WEAR. PLEASE LOOK AT ALL PHOTOS AND ASK ANY QUESTIONS YOU MAY HAVE. REMEMBER THAT I SELL MOSTLY ANTIQUE AND VINTAGE ITEMS AND THAT THEY ARE MOSTLY LIKELY NOT BE PERFECT DO TO THE NATURE OF THEIR AGE. IF YOU HAVE A PROBLEM PLEASE CONTACT ME BEFORE LEAVING FEEDBACK.