Built as a civil aircraft and registered NC8943H, it was one of 83 of the type bought from North American by the USAAF for use as liaison and staff transport aircraft and designated L-17A, and in this case allotted the serial 47-1312. It was later fitted with new brakes and fuel tanks by Schweizer Aircraft Corporation and re designated L-17C. Later civilianised as N6724C it had a number of accidents, and was most recently restored by lately deceased Milwaukee Police Sgt. Burton K Ottow whose name it still wears. It was being offered for sale at Oshkosh with the proceeds going to his estate.