[ Pasadena:]: California Institute of Technology, [1934?]. One sheet (4” x 10 ”). With a vignette of a man in a hot air balloon printed in black. Decorative border and some text printed in orange. Some chipping and a small spot of dampstaining to bottom margin. A very good copy of this scarce and fragile item. First edition. Item #17317
Printed in commemoration of an exhibition arranged by Jake Zeitlin. The sponsoring committee for the exhibition includes Herbert Hoover Jr., Clark B. Millikan, and Theodore von Karman. The exhibition ran from November eighth until November eighteenth in the treasure room of the Humanities Library.