Hermann Oberth signed autograph

Description

Hermann Oberth signed autograph. Condition is "Used". Please ask any questions and see the pictures before buying.
Hermann Julius Oberth was an Austro-Hungarian-born German physicist and engineer. He is considered one of the founding fathers of rocketry and astronautics, along with the French Robert Esnault-Pelterie, the Russian Konstantin Tsiolkovsky, and the American Robert Goddard.