Hello, my grandmother passed away and I inherited her Frank M. Whiting silverware set. It is the Princess Ingrid pattern from 1945. There are 72 pieces (12 knives are stainless steel so I think they may be replacements with no value?) I am hoping someone can tell me what this set is worth. I have attached a picture. They all need a good polishing but I think are in good shape and will clean up nice. Thanks in advance for anyone's help. Danielle