Stele of Ördek-Burnu
An undeciphered alphabetic stele found in Ördek-Burnu, 20 km (8 miles) south of the city of Samʾal (Zinjirli) in what is now northern Syria, dates to the 9th century BCE. The language of the inscription is difficult to interpret. It contains Semitic words but is not grammatically Semitic, and may be a mixture of Luwian and a Semitic language. It is kept in Istanbul.
Monument data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).