here is a new find. some cypriot letters which cyprus mail describes as griik syllabary of cyprus.
https://cyprus-mail.com/2019/08/14/small-piece-of-pottery-with-a-big-meaning-unearthed-in-paphos/
i thought i will google it and came up with nothing. no such thing exists. but i did find this. so it seems ancient griiks learnt to read and write from the cypriots. otuzbirciler.
https://www.eurekalert.org/pub_releases/1997-12/UoSC-BOGA-151297.php