SYRIA (1955) UN emblem*. Scott No 393. Yvert No 75. Color error in Imperforate Souvenir Sheet of 4: printed in blue instead of Prussian green. Hard to find!
AVAILABLE AT $50
CUBA (2017) 70 years of Cuban membership in UN. Misperforated block of 4.
AVAILABLE AT $50
LIBERIA (1953) Scroll*. Flags*. Missing red color entirely. Scott No 339, Yvert No 316.
AVAILABLE AT $25