Feb 23, 1936 First Rocket Airplane "Gloria" Cover Signed By Willy Ley Fr. 1621 HISPAN • ET IND •

HISPAN • ET IND • REX

Measures: 2

Scott #274 1895 15¢ Henry Clay - Very Fine NG LH

1615* - PCGS Gem New 63 PPQ

NGC Price Guide :: $475

Feb 23, 1936 First Rocket Airplane "Gloria" Cover Signed By Willy Ley Fr. 1621 HISPAN • ET IND •Feb 23, 1936 First Rocket Airplane "Gloria" Cover Signed By Willy Ley From the Wikipedia Page on Willy Ley: In 1936, he supervised operations of two rocket planes carrying mail at Greenwood Lake, NY.[12] Ley was an avid reader of science fiction, and began publishing scientific articles in American science fiction magazines, beginning with "The Dawn of the Conquest of Space" in the March 1937 issue of Astounding Stories. In the February 1937 issue of