Esperanto
Denmark, Hinged
1914. LERNU ESPERANTON. KONVERSACIA KLUBO DE AARHUS
Germany, Hinged
1914. LEIPZIG. INTERNATIONALE AUSSTELLUNG für BUCHGEWERBE UND GRAPHIK. MAY - OKTOBER. Esperanto text.
Soviet Union, Hinged
1927. Overprints. 8 KOP / 7 KOP Esperanto.
MICHEL 337B
cancelled post card with stamp
1911. Esperanto tra la mondo. Interesting card from MONTEVIDEO 7.X.1911 toBelgium, England, Spain, Russia, Austria, Uruguay, Argentina, Brasil and France 6. Feb. 1912. 10 countries within 4 months.
Germany, cancelled post card without stamp
1923. Xva UNIVERSALA KONGRESO DE ESPERANTO NÜRNBERG 2.8.23.__
Germany, cancelled post card without stamp
1923. VIZ TU LA Xvan UNIVERSALA KONGRESON DE ESPERANTO 2a-8aDE AUGUSTO 1923 NÜRNBERG 6.8.23.__
Germany, Cover
1923. VIZ TU LA Xvan UNIVERSALA KONGRESON DE ESPERANTO 2a-8aDE AUGUSTO 1923 NÜRNBERG 29.1.23.__
Germany, Cover
1923. Xva UNIVERSALA KONGRESO DE ESPERANTO NÜRNBERG 8.8.23.__
Norway, Cover
1910. UNIVERSALA ESPERANTO ASOCIO from Russland to Norge.