This property defines the Unicodes which have Old North Arabian script
Characters like 𐪀,𐪁,𐪂, etc. are listed under Old North Arabian Script.
32 Characters are present in Old North Arabian Script starting with the Unicode point U+10A80 that represents the character 𐪀.
Currently, as per latest version 15.0.0, Unicode supports 164 number of Script. Here are a few examples - Adlam,Ahom,Anatolian Hieroglyphs, etc.