Originally Posted by fernando
My confusion, then; between famous Italian smith Pietro Caino (Milan) and swords made by masters from Caino (Brescia).
And this appears to be a general confusion not only yours.
Then why would a "Pietro Caino" mark his blades with a crowned "S" or "MS" and not his initial letters?! (see the example in the Metropolitan museum)
Moreover, I could not find more detailed information about this Pietro Caino so I am wondering if he ever existed, or the "CAINO" marked blades are strictly referring to the city where they were produced (like the blades marked with "Toledo" or "Solingen").
To me, it appears that the CAINO marking on the blades indicates their city of origin, and the additional punched mark the initials of the swordsmith name, that unfortunately is now lost.