Former USAAF 41-39221. Converted from A-26 Invader to On Mark Marketeer executive aircraft during the early 1960s. In the early 1980s this was used as an engine testbed, with a turbine engine mounted in the nose. Became N26GT in 1983 and eventually donated to the South Mountain High School in 1992. Still on outdoor display there in good condition 30 years later, in September 2022.