Just one of the 125 examples of the type that gathered at AirVenture 2023 to celebrate the 75th anniversary of the type.

The c/n listed on the FAA civil registry is actually the original b/u number worn while in service with the US Navy.

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.

One of a batch of 355 L-21Bs supplied to European nations under the Mutual Defense Assistance Program (MDAP) in the early 1950s, this aircraft went to the Italian Army as MM 54-2626, and has been restored in the colours it wore at that time. According to the late Joe Baugher's indispensable US Military Serials web site, the aircraft was assigned to the Alpine Squadron and used to patrol the border between Italy and Yugoslavia. It was accompanied at Oshkosh by sister-ship N33MT MM 54-2526 (q.v.) in matching colours, and they had been flown up together from Texas by the owner and his wife.

A 1961 Cessna 310F painted as a US Navy U-3B.