You have a vintage set of serving pieces from Italy. Both have beautiful pierced work. These most likely were bought for dessert serving pieces. However, people have also bought/used these for fish serving sets (even tho' it isn't traditional fish serving piece.)
Unfortunately, they aren't marked as sterling and don't appear to be as well from the pictures.
Unfortunately, as well, they don't demand a high price. If you search ebay they are selling very low (Set $10 - $25).