Phaistos Disc

46 assigned characters, 98% of them in a Symbol category.

Forty-six signs from a single object, stamped in clay around the seventeenth century BCE, in a script that has never been deciphered and may not be a script. Unicode encoded them regardless — so that scholars arguing about what they mean can at least agree on which sign they are arguing about. Meaning is not a prerequisite for a codepoint; citability is.