International Sign Language (Gestuno) is a constructed sign language, which the World Congress of the World Federation of the Deaf originally discussed in 1951. In 1973, a committee created and standardized a system of international signs. They tried to choose the most understandable signs from diverse sign languages to make the language easy to learn.

The commission published a book with about 1500 signs. It does not have a concrete grammar, so some say that it is not a real language.

The name "Gestuno" is from Italian, meaning "the unity of sign languages." Some deaf people use Gestuno at the World Games for the Deaf and the Deaf Way Conference and Festival in Washington, DC, but besides that its use is very limited.

-Wikipedia, the free encyclopedia at http://www.wikipedia.org/wiki/Gestuno_language

Gestuno
What do you do when you try to gather together people of the deaf communities from all four corners of the globe? You devise an international sign language that all are capable of learning and understanding.

International Gesture: Principles and Gestures
Analysis and examples of international gestures by David Bar-Tzur

International Sign Language
Description, who, why, & how about Gestuno

Gestuno: International Sign Language of the Deaf
The revised and enlarged book of signs agreed and adopted by the Unification of Signs Commission of the World Federation of the Deaf. Translations in English, French, & Arabic

Manual Esperanto
Views on use of Gestuno