It depends on whether it is properly marked on the pieces themselves. I don't mean the paper label either. I'm talking about the silver marks. Inspect each piece carefully and you should have a purity mark stamped on each piece as well as a lozenge shaped mark with numbers and letters (1 or 2 of each) inside of it. The plate I have weighs 16 ounces. It is worth a minimum of the current silver melt value which is around $420 for 800 silver which is the Italian standard, which is also where your set was made.
Cabella Ligure's population is 603.
The population of Mongiardino Ligure is 186.
The population of Roccaforte Ligure is 183.
The population of Rocchetta Ligure is 208.
The population of Pieve Ligure is 2,502.
Campo Ligure's population is 3,080.
The population of Casarza Ligure is 6,276.
The population of Finale Ligure is 11,638.
The population of Varese Ligure is 2,155.
Coreglia Ligure's population is 254.
Albera Ligure's population is 349.
Calice Ligure's population is 1,496.