If it is unique, how did Mr. Fell translate it in your #8 above?
A royal seal pressed into clay, with a Minoan hieroglyphic inscription (?), found at Knossos. If these four characters are Linear A as they appear to be, using my best guesses from Barry Fell's work on Linear A, they represent the consonants lu - ak/ag - ke - su/yu (the slashes indicate that I'm not sure which sign to use). ESOP Volume 4, No. 77 (p 26) shows the first two symbols and two others, translated as lugal that is, the king. The first character lu is a loan word meaning "man royal". Figure from p 37, The Aegean Civilizations by Peter Warren, 1989, a volume of the The Making of the Past series.