FRANCE (1963) Radio & Television Center*. Trial color proofs in strip of 3 (blue, green, brown). Scott No 1079, Yvert No 1402. Hard to find!
AVAILABLE AT $75
COMOROS (1960) Radio circuit*. Trial color proofs in strip of 5 with multicolor. Comoro Radio Station. Scott No 46, Yvert No 17.
AVAILABLE AT $75
NIGER (1965a) Radio interview*. Trial color proof strip of 5 with multicolor. Radio Clubs promotion. Scott No 163, Yvert No 169.
AVAILABLE AT $65
NIGER (1965a) Listening to radio broadcast. Trial color proof strip of 5 with multicolor. Radio Clubs promotion. Scott No 165, Yvert No 171.
AVAILABLE AT $65
NIGER (1965a) Public debate radio broadcast. Trial color proof strip of 5 with multicolor. Radio Clubs promotion. Scott No 166, Yvert No 172.
AVAILABLE AT $65
FRANCE (1967) European Broadcasting Union emblem*. Trial color proofs in vertical strip of 3 different colors. Scott No 1171, Yvert No 1515. Hard to find!
AVAILABLE AT $50
(Image b)
AVAILABLE AT $275
COMOROS (1960) Radio tower & waves*. Trial color proofs in strip of 5 with multicolor. Comoro Radio Station. Scott No 47, Yvert No 18.
AVAILABLE AT $70