Gardone is only the name of a city in the Province of Brescia which is located in northern Italy. There is also the city of Brescia located nearby and the region is famous for making guns.
I wonder if the person that you spoke to gave you the correct information about which manufacturer made your revolver. Investarms currently makes the Lyman single shot pistol.
There may have been a thread that compares the overall length of the cylinders from Uberti and Pietta and their slight difference in measurement.