Castelfidardo is a town in the province of Ancona, in the Marche region of central-eastern Italy. During the early 1960’s this area was a hot bed for small but talented guitar builders, but also had links back to USA. From this area in Italy builders like Zerosette were branded with names like JG, Goya, Contessa, Atlas and Sano. Sano? Weren’t they an AMP builder in USA? That’s the connection!