GABON (1968) WHO headquarters*. Trial color plate proof in strip of 5 with multicolor. 20th anniversary of WHO. Scott No 226, Yvert No 225.
AVAILABLE AT $60
MALI (1961) UN emblem*. Flag*. Birds*. Trial color proofs in strip of 5 with multicolor. Admission to the UN. Scott No C11, Yvert No PA11.
AVAILABLE AT $60
IVORY COAST (1962) UN emblem* & building*. Trial color proofs in strip of 5 with multicolor. Admission to the UN. Scott No C21, Yvert No PA24.
AVAILABLE AT $60
DAHOMEY (1965) People*. Handshake*. UN emblem*. Trial color proofs in strip of 5 with multicolor. International Cooperation Year. Scott No C27, Yvert No PA31.
AVAILABLE AT $60
CONGO (1975) UN emblem*. Trial color proofs in strip of 5 with multicolor. 30th anniversary of UN. Scott No 360, Yvert No 408.
AVAILABLE AT $60
CHAD (1985) Dove*. UN emblem*. Woman holding flowers*. Trial color proofs in strip of 5 with multicolor. 40th anniversary of UN. Scott No 569, Yvert No 499.
AVAILABLE AT $60
CHAD (1985) Dove*. Trial color proofs in strip of 5 with multicolor. Admission to the UN. Scott No 570, Yvert No 500.
AVAILABLE AT $60
LAOS (1956) UN emblem*. Trial color proofs in strip of 5. Scott No 31, Yvert No 34.
AVAILABLE AT $60
MALI (1971) Hands*. Rose*. UNICEF emblem*. Trial color proofs in strip of 5 with multicolor. 25th anniversary. Scott No 154, Yvert No 156
AVAILABLE AT $60
MALI (1971) Children*. UNICEF emblem*. Trial color proofs in strip of 5 with multicolor. 25th anniversary. Scott No 155, Yvert No 157.
AVAILABLE AT $60
RWANDA (1974) World population year. Set of 6 color separations. Scott No 662.
AVAILABLE AT $75
RWANDA (1974) Population graph. Set of 6 color separations. Scott No 663. World Population Year.
AVAILABLE AT $75