In her Plato Prehistorian: 10,000 to 5000 B.C. Myth, Religion, Archaeology, Mary Settegast reproduces a table which shows four runic character sets; a is Upper Paleolithic (found among the cave paintings), b is Indus Valley script, c is Greek (western branch), and d is the Scandinavian runic alphabet.
Upper Paleolithic alphabet? Dang, didn’t know they had writing that far back. Guess, it should not be a surprise though, we have lost so much knowledge.
Now I’m thoroughly runed! (sorry, couldn’t resist!)