Inscriptions in undeciphered writing systems

inscribed fired clay tablet found in Crete, covered on both sides with undeciphered spiral Minoan writing

set of symbols found upon Neolithic era (6th to 5th millennia BC) artifacts from the Vinča culture of Central Europe and Southeastern Europe

archaeological artifact

wooden tablet bearing inscribed markings, discovered in Dispilio, Greece

fragment of a large sandstone slab which originally stood at the mouth of the Singapore River, now in the National Museum of Singapore

Mesoamerican stela

sculpture

ancient inscription relating visions of the seer of the gods Bala'am, son of Be'or

undeciphered archaeological text

undeciphered script

signs found on the Cascajal Block, which may represent Olmec writing