Not a full language, but rather a limited pidgin used for cross-linguistic communication, especially at international meetings such as those of the World Federation of the Deaf and the Deaflympics. Distinct lexically from all specific sign languages, as it incorporates elements from a variety of different (mostly European) sign languages, and shows considerable variation depending on the location where it is being used and the L1 of the interlocutors. (The listing of it under Italy is semi-arbitrary, since Ethnologue is organized by country.).
L2 speakers only.