1949
The 75th Anniversary of U.P.U. – Overprinted “75 ANIVERSARIO U.P.U.” and Surcharged


[The 75th Anniversary of U.P.U. - Overprinted "75 ANIVERSARIO U.P.U." and Surcharged, type YI]


[The 75th Anniversary of U.P.U. - Overprinted "75 ANIVERSARIO U.P.U." and Surcharged, type YJ]


[The 75th Anniversary of U.P.U. - Overprinted "75 ANIVERSARIO U.P.U." and Surcharged, type YK]

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