3¢ Palomar Mountain Observatory
ssue Date: August 30, 1948
City: Palomar Mountain, CA
Quantity: 61,120,010
Printed by: Bureau of Engraving and Printing
Printing Method: Rotary Press
Perforations: 10 1/2 x 11
Color: Blue
NOT A STOCK PHOTO
UNGRADED AND AS IS
TOP STAMP ON THE RIGHT SIDE IS A SMUDGE ON THE GUM