first edition of an important early work on the feasibility of space flight; first issue, in pictorial wrappers. Accompanied by 1960 English translation (NASA TT F-44). "Hohmann was the first man to work out the fuel requirements for a number of interplanetary trips restricting himself to a mathematical investigation of the quantities of a given or assumed fuel required for an assumed operation"--Interlibrum 270/181. Ciancone 98.