SPECIAL Cottections Lisbon. Exposig&o internacional do centen&rio *S0G do selo postal portugués. P953 Exposig&o internacional do centen&ario do selo -L68E postal portugués, Exposition internationale du centenaire du timbre-poste portugais, no ediff- cio do Instituto Superior Técnico em Lisboa ... 2.° folheto ... Lisboa, 1953. 48p. illus. 22cm.
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1. Postage-stamps--Exhibitions.