ETHIOPIA (1970) OAU Flag*. Set of 8 progressive proofs. Scott No 567, Yvert No 572. Organization of African Unity.
AVAILABLE AT $100
FRANCE (1958) Europe Council Flag*. Sun*. Trial color proof. Scott No 1O5. Yvert SE20.
AVAILABLE AT $40
MAURITANIA (1960) Hands holding flag*. Map*. Trial color proof strip of 5 with multicolor. Scott No 118, Yvert No 154.
AVAILABLE AT $50