Inscriptions in undeciphered writing systems

From the Wikipedia category list 
*Alekanovo inscription
*Ancient inscriptions in Somalia
*Butuan Silver Paleograph
*Cascajal Block
*Dispilio Tablet
*Gradeshnitsa tablets
*Ikom monoliths
*Käymäjärvi Inscriptions
*La Mojarra Stela 1
*McClelland Sherd
*Ndakunimba Stones
*Newton Stone
*Olmec hieroglyphs
*Phaistos Disc 
*Phaistos Disc decipherment claims
*Rongorongo 
*Singapore Stone 
*Sitovo inscription
*The Starving of Saqqara
*Tărtăria tablets
*Tuxtla Statuette
*Youra Potsherds
*Zapotec writing
See also Undeciphered writing systems and Inscriptions of disputed origins
There are many websites of varying degrees of credibility covering these topics.
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