Assuming it is what the label tells, its one of the category VII, today called Master, which are available at around $4000 when purchased new.
I would not go for the risk to buy a label in a different violin (those scratches could be caused in the attempt to remove it) in this case. It is not one of the instruments he made himself but a workshop violin, already cleated.
Why spent the same with all the risk and not being able to play before?
Oh, and this guy should have a look at Fiorillos score again, this was not only shortend but even played with many wrong notes.