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UK organizantoj. de EsperantoWeltkongress Cambridge Die Organisatoren Joseph Rhodes Theophile Cart John Pollen Ludwik Zamenhof pl Organizatorzy wiatowego Kongresu Esperantystw Cambridge Od lewej Joseph Rhodes Theophile Cart John Pollen Ludwik Zamenhof bildarchivaustria at aspx piBildID Bildarchiv Austria author other versions