Japan. Amo Akademio. 1975. Box set w. flash cards. Box Condition: Very good, darkening, damp-stained, & torn at left side. Card Condition: As new. Unpaginated. (ill. in b/w).

Esperanto is the world's most widely spoken constructed international auxiliary language. Created by the Warsaw-based ophthalmologist L. L. Zamenhof in 1887, it was intended to be a universal second language for international communication, or "the international language".