The Phaestos Disc, with 122 undeciphered hieroglyphs (Linear A script), terracotta, c. 1700 – 1600 BC Minoan (world’s first typewritten document? made by impressing stamps on wet clay; possibly not Minoan, however; seemingly unique document of vanished language) (reverse side)
Photo Credit: [ The Art Archive / Heraklion Museum / Gianni Dagli Orti ]