NORTH KOREA (1961) Maize harvester*. Preliminary artwork from the archives of the North Korea printers. Watercolor on posterboard, measuring 11 x 15 cm. Inscribed on back with official stamp and notes in Korean. Scott No 286, Yvert No 270, KSC No 249.
AVAILABLE AT $250
BELGIUM (1988) Lyre. Quill pen. Book. Atomic symbols. Ministerial proof. Scott No 1296, Yvert No 2297. Royal Academy of Science, Literature and Fine Arts.
AVAILABLE AT $50
RUSSIA (1982) Quill pen*. Lyre*. Flask*. Illustrated entire (N) promoting educational lectures.
AVAILABLE AT $10
U.S.A. (1924) Bottles of tonic*. Obesity. Uterine tonic. Laxative. One cent postal card (O) with advertising. "Cole Chemical Company."
AVAILABLE AT $25
SWITZERLAND (1946) Sailing vessel. Chemical and Botanical Products. Red meter cancellation on cover Meter No 3172: "Importers of chemical products from all countries."
AVAILABLE AT $20