GREAT BRITAIN (1987) Isaac Newton*. Unaddressed FDC with cachet. Scott Nos 1172-5.
AVAILABLE AT $10
U.S.A. (1948) George Washington Carver*. FDC with cachet and First Day cancel. Scott No 953.
AVAILABLE AT $10
GREAT BRITAIN (1987) Discoveries of Isaac Newton. Addressed FDC with official cachet. Scott Nos 1172-5.
AVAILABLE AT $25