Well, if you can read paleo-Hebrew that sure looks like:
ל = “belonging to”
[ישׁעיה[ו] נבי[א= Isaiah the prophet (with some letters missing)
We’ll see. I can hardly wait for the minimalist crowd to come up with another “what you see really isn’t what you see” argument. They’re good at that.
You can read a bit about the discovery here.