>>If it was Tiffany or Christofle it’s worth a lot more than that.<<
I have always been under the impression that after sale, things made of rare metals are only worth their value on the scale.
That depends. That's what some silver-buy back folks would want you to believe. But it may not be true.
If you are selling your flatware to places like Replacements - maybe. But it depends. As a start, check out eBay. Some pieces, e.g., forks, go as high as $100 or more. Place spoons also. I've seen pea spoons go for $700.