Justus Grassmann

Lieutenant Justus Grassmann (c. 1895–96 – 2 November 1961) was a World War I flying ace credited with ten aerial victories—seven enemy airplanes and three observation balloons.

Justus Grassmann

Lieutenant Justus Grassmann (c. 1895–96 – 2 November 1961) was a World War I flying ace credited with ten aerial victories—seven enemy airplanes and three observation balloons.