>L. Zamenhof, "Ekzercaro de la lingvo internacia 'Esperanto", 1898.Book, book.
>L. Zamenhof, "Unua Libro", 1904.Book.
>Kongresa Parolado ce la malfermo de la Sesa Universala Kongreso de Esperanto en Washington la 15 - an de augusto en 1910-a, 1910.Leaflet, paper, 15.5 x 11.8 cm.
>La Nova Epoko, 1929-1930.Periodical, book, 22.5 x 15 cm.
>La Sankta Biblio (The Holy Bible), 1931.Book, book, 19 x 13.5 x 3 cm.
>Jarlibro de Internacia Esperanto-Ligo 6 editions, 1940.Book, book, 15.3 x 11.3 cm.
>La Fabli dil Olda Korvo, 1973.Book, book, 21 x 15 cm.
>Matti Braun, La Pekuniala Teorio di Silvio Gesell, 2002.Video.
>Matti Braun, Bunta Garbo, 2002.Installation.
>Nicoline van Harskamp, PDGN, 2016.Other.
>Nicoline van Harskamp, My Name is Language, 2018.Performance.
>Set of 6 Esperanto "L Espero de L. L. Zamenhof" Postcards.Other, postcard, 9 x 14 cm.