The only Prospero Donadio I've come up with had some connection apparently to Iver Johnson and possibly Mossberg.
He may have been a gun designer.
The page was in Italian, and the "universal translator" made a mash of it.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.