Without getting into the debate of Ashurith (Modern Hebrew) vs K'thav Ivri (Paleo Hebrew), let's just say for the sake of argument that Paleo Hebrew was the original Hebrew. It is known that the Rabbis/Talmud legislates that Kthav Ashuri is to be considered the script that we now use and that the Tetragrammaton, when written in Ashuri has holiness. However, does that mean that the Tetragrammaton written in Paleo now has zero holiness?
If I print a piece of paper with the Tetragrammaton written in Ashurith it has to go into a genizah, it cannot be thrown in the trash. But what if I printed the Tetragrammaton in paleo Hebrew, does it have any holiness according to halakha?
If one were to find an instrument of the Beit Hamikdash, lets say the Tzitz. If the original tzitz were discovered by archaeology, or found in the catacombs of the Vatican, would it be disqualified for use if it was written in Paleo Hebrew?