I find this fascinating.These are decorative imitations of an Arabic script used to represent opulence and and rarity.
The fake calligraphy becomes a powerful cultural signifier that incorporates language, affluence, and design. But because the “writing” is utterly meaningless and based on a visual perception of an alien system of communication, the scribbles, though decorative, become an abstraction of the idea of Arabic culture embodied by language.
[Thanks #Medievalpoc]