This property defines the Unicodes which belongs to Sutton SignWriting block
Characters like 𝠀,𝠁,𝠂, etc. are listed under Sutton SignWriting Block.
674 Characters are present in Sutton SignWriting Block starting with the Unicode point U+1D800 that represents the character 𝠀.
Currently, as per latest version 15.0.0, Unicode supports 328 number of Block. Here are a few examples - Latin Extended E,Adlam,Aegean Numbers, etc.