Your set is excellent quality silverplate from a premiere silversmith. Honestly, I don't know the "value". It's a hard item to sell right now - a new generation doesn't want to take the time to polish and care for these wonderful 1940 - 1960 items. And do you have the matching tray? If so, I would insure replacement value at $85 - $125.
Bottom line? Hang onto it. A new generation may well come to treasure these gorgeous plated items. KB