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The 50 spesmilo coin is a former commemorative coin of the Esperanto movement. It, along with 1 and 2 spesmilo pieces of similar design, was issued in 1912 in commemoration of the 25th anniversary of Unua Libro, the first publication describing Esperanto. The piece was authorized by the Ĉekbanko Esperantista or Swiss Esperantists and struck by the Swiss watch case and medal-making firm Holy Frères.
The piece was presented to L. L. Zamenhof (1859–1917), the creator of Esperanto, at the 9th World Esperanto Congress in Bern on August 24, 1913. It was mentioned in an article by The New York Times the next day, and briefly described by La Revuo in late 1913.
Only one example of the piece was manufactured. Its status and whereabouts are currently unknown.
- Esperanta Numismatika Asocio – "Esperanta Numismatiko" (2015) (Esperanto)
- Klag, Walter (April 2017). "Esperanto-Mono". Esperanto. (Esperanto)
- Esperantismo kaj mono on the Esperanto Wikipedia
|Coins||1₷ • 2₷ • 50₷|
|Banknotes||½₷ • 1₷ • 2₷ • 5₷ • 10₷|
|Miscellaneous||Ĉekbanko esperantista • Holy Frères • Universal Spesmilo Bank|