This SVG symbol is meant to represent the unreadable glyph on side A of the Phaistos disk.  It was not assigned a number by Arthur Evans not a code point by Unicode, but it is named "Phaistos glyph 49" to simplify displaying the Phaistos text in pictorial form using the othersymbol images "Phaistos glyph NN.svg".
Own work
Jorge Stolfi