United States of America 1948 Palomar Mountain Observatory

From Stamps of the World

  • Issue Date: 30 August 1948
  • Designed by: George Arthur Gundersen (engraver), E.H. Helmuth (lettering)
  • Print Run : 61,000,000
  • Print Process:
  • Perforations:
  • Stamp Size :
  • Michel Catalog Number : 579
M# 579