Fiorelli bicycles were founded in about 1950, by the three Fiorelli brothers.
They were based in Novi Ligure, Piedmonte, Italy, they are more famous for being the makers, of the Fausto Coppi branded bikes. They made the Coppi bikes from about 1958, till they retired in about 1990.
There is a lovely Fiorelli, in the readers bikes section, of the Classic lightweights UK website.