This property defines the Unicodes which have Psalter Pahlavi script
Characters like 𐮀,𐮁,𐮂, etc. are listed under Psalter Pahlavi Script.
29 Characters are present in Psalter Pahlavi Script starting with the Unicode point U+10B80 that represents the character 𐮀.
Currently, as per latest version 15.0.0, Unicode supports 164 number of Script. Here are a few examples - Adlam,Ahom,Anatolian Hieroglyphs, etc.