The entire history started from a key figure, that of Jacopus Turini, a skilful cuirass-maker of Scarperia, who moved to Florence and registered his mark with the Guild of Craftsmen of Florence. This was in 1369.
The document that registered the trade-mark, which was found again in 1968, is currently conserved in the State Archives in Florence

"Jacopus Turini de la Scharperia facit hoc signum".
(original copy of the Registration of the Mark)

The "Signum", that is, the trade-mark, is the unquestioned link that confirms this family’s long tradition as goldsmiths. The Torrini family have handed it down from father to son for more than six centuries, almost unwittingly, giving to it the auspicious significance of half a four-leafed clover with a spur.
Jacopus and his brother Tura were very skilled in making armour and cuirasses. In addition to the defence function for which these were used, they also dealt in aesthetics, realising extraordinary pieces of goldsmithery. Their fame spread outside of Florence, and they were called to Siena to collaborate with their art to the building of the Duomo.