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On October 7, 2019, the Argentine post issued a souvenir sheet in honor of two Creole horses, Mancha and Gato.
On October 6, 2019, the Iranian Post issued a souvenir sheet in honor of Tehran’s Day.
On October 3, 2019, PostNL released another series of Children's Charity Stamps. The theme of the issue was children's books by Dutch writers.