Postal History of Esperanto
اسپرانتو کی پوسٹل تاریخ
Dr. Ludwig Zamenhof and Esperanto
In 1927, the USSR issued a postage stamp featuring a vignette of Dr. Zamenhof to commemorate the 40th anniversary of the creation of Esperanto. Since then, several countries have celebrated Esperanto by issuing postage stamps or providing special cancellations to mark Esperanto events.
On December 15, 1933, the Brooklyn Esperanto Society prepared a souvenir cover to commemorate the birthday of Dr. Zamenhof.