RWANDA (1965) Quill*. Retort*. Radical*. Books*. Set of 4 trail color proofs (missing value). Scott No 84. Rwanda University.
AVAILABLE AT $40
RWANDA (1965) Student peering through microscope*. Set of 7 trail color proofs (missing value). Scott No 85. Rwanda University.
AVAILABLE AT $40
RWANDA (1965) Scales*. Hand*. Set of 5 trail color proofs (missing value). Scott No 86. Rwanda University.
AVAILABLE AT $40
RWANDA (1965) University buildings*. Set of 7 trail color proofs (missing value). Scott No 87. Rwanda University.
AVAILABLE AT $40
RWANDA (1985) Outdoor classroom*. Set of 6 color separations. Scott No 1217. Self-sufficiency in food production.
AVAILABLE AT $60
LAOS (1959) Key of Knowledge*. Globe*. Trial color proofs in strip of 5. Scott No 58, Yvert No 61.
AVAILABLE AT $75