FRANCE (1976) Stylized petroleum storage tanks*. Set of 2 die proofs (pos + neg) in different colors signed by the engraver MONVOISIN. Scott No 1441. Yvert No 1864. Aquitaine.
AVAILABLE AT $175
CONGO (1973) Workers* assembling petroleum drill*. Scott No C153. Yvert No PA155. Oil installations, Pointe-Noire. Die Proof in blue signed by the engraver DECARIS.
AVAILABLE AT $140