We'd like to use analytics cookies to understand which symbols people look up, so we know what to research next. They are not used for advertising and we set none of them unless you say yes. What we store.
Writing carried for what signals cannot say.
Also known as: Underwater slate, Written underwater communication
The practice of carrying a writing slate underwater for messages the hand signal set cannot express.
Carries written messages underwater for anything the hand signal set cannot express.
Contexts: Public information
Exists because a closed signal vocabulary is by definition finite, so any system of fixed signals needs an escape into open language beside it.
Contexts: Public information
A flat rectangular board with a roughened pale surface, usually white, written on with a pencil attached by a cord.
A fuller structured visual breakdown is not yet documented for this symbol.