International QuietSun Year(IQY)

During 1964 to 1965, International QuietSun Year(IQY) was set.
(1) Cuba

(Cuba, 1965, SC#958-963)

(2) CzechoSlovakia

(CzechoSlovakia, 1965, SC#1289)	(CzechoSlovakia, 1965, SC#1290)

(3) Niger

(Niger, 1964, SC#138）

(4) Nigeria

(Nigeria, 1965,SC#173)	(Nigeria, 1965,SC#174)

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