DAHOMEY (1966) Turret*. Die proof in brown signed by the engraver PHEULPIN. International Negro Arts Festival. Scott No 216, Yvert No 236.
AVAILABLE AT $75
FRANCE (1996) Tower*. Iles Sanguinaires*. Die proof in brown signed by the engraver DURRENS. Scott No 2527, Yvert No 3019.
AVAILABLE AT $90
MOROCCO (1933) Tower of Hassan in Rabat*. Die proof in brown with value tablet empty. Scott type AP2.
AVAILABLE AT $120