W C Alder & L E Derryberry of Abilene TX., in 1935, built the Alder & Derryberry A monoplane.
A three-place open cockpit monoplane powered by a 37hp Ford A engine, it was registered NX13959.
W C Alder & L E Derryberry of Abilene TX., in 1935, built the Alder & Derryberry A monoplane.
A three-place open cockpit monoplane powered by a 37hp Ford A engine, it was registered NX13959.