U+1CC89 "𜲉" Square Four Corner Saltires Unicode Character

U+1CC89 "𜲉" Square Four Corner Saltires is a symbol encoded in the Supplementary Multilingual Plane, specifically within the block designated for symbols used in medieval and early modern European manuscripts, particularly in astronomical and astrological diagrams. It visually represents a square shape with four diagonal cross marks, or saltires, positioned at each of its four interior corners, which historically likely served to denote a specific celestial configuration, a numbering system, or a decorative element in tabular data.