CHAD (1966e) Sandstone millstone with grinder*. Die proof in brown signed by the engraver GANDON. Scott No 137, Yvert No 134.
AVAILABLE AT $120
NEW CALEDONIA (1979) Petroglyphs*. Die proof in brown signed by the engraver MONVOISIN. Scott No 442, Yvert No 425.
AVAILABLE AT $100
SENEGAL (1967) Bandiala ancient covered bowl*. Die proof in reddish-violet signed by the engraver GANDON. Scott No 296, Yvert No 301.
AVAILABLE AT $140
AFARS & ISSAS (1974) Rock carvings*. Die proof in green signed by the engraver HALEY. Scott No C98, Yvert No PA100.
AVAILABLE AT $175
IVORY COAST (1968) Abidjan Anthropological Museum*. Carved screen*. Die proof in brown signed by the engraver GAUTHIER. Scott No 275, Yvert No 282.
AVAILABLE AT $80