This property defines the Unicodes which belongs to Linear B Ideograms block
Characters like 𐂀,𐂁,𐂂, etc. are listed under Linear B Ideograms Block.
124 Characters are present in Linear B Ideograms Block starting with the Unicode point U+10080 that represents the character 𐂀.
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.