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Series: 300th Anniv of publication of Komencky's «Opera Didactica Omnia»
Poland, 1957, 2.50 Zl. 12 õ 12 (1/4). red
Catalogues: Michel: 1041Scott: 794Stanley Gibbons: 1041Yvert et Tellier: 919
Plots: Komensky Jan Amos. «Orbis Sensualium Pictus»
Poland, 1957.12.11, Warsaw. Jan Amos Komensky