I know it's almost 10 years later, but I have this big bronze plaque in my basement that I picked up at a flea market about 15 years ago. I typed the Latin words into Google, and this thread popped up. The plaque I have has a repaired "F" and a repaired "22" on the 1522 date. The new letters were brazed on. The plaque weighs about 60 pounds. I thought you might find this to be of interest. :-)