
Trev`s dating is correct; there is
F.C for Fratelli Cacchione 1949 (or earlier) to 1970 when the name changed. Whatever initials later than 1970 could be CF or GC.
Have no idea what they had to do with Tiffany in this particular set of marks unless imported to USA. Italy mark is too obvious and honest.
Ventrella (Naples and Rome) were documented retailers. ``Orafi F.lli Cacchione, firmati da Ventrella — Roma``
They are jewelers in the first place.
FRATELLI CACCHIONE (1949)
changed to CACCHIONE FILLI S.n.c. (1970)
changed to CACCHIONE FRATELLI srl (1990)
changed to GRUPPO CACCHIONE di Oscar Cacchione e C. (2010)