Issue: 11th World Youth and Students Festival, Havana, Cuba (Congo, Republic (Brazzaville), 1978)

Friday, July 28, 1978, 11th World Youth and Students Festival, Havana, Cuba

Friday, July 28, 1978 Congo, Republic (Brazzaville) will issue: Stamp "11th World Youth and Students Festival, Havana, Cuba" face value 35,

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