Hello Jim,
Thanks for sharing your knowledge I just learned something new.
That's the first time I heard the meaning of the Andrea Ferara name and the more I think about it the more it seems possible that is was a brand instead of a name.
I mean thank about it what are the odds that " Ferdinand Porches means " German sportscar " huh ?
I checked the blade today and there is a moon slightly visible on both sides of the ricasso and a stamp I can't define, also there is writing in capital letters on the side of the ricasso and on both sides.
Kind regards
Dirk