Vintage stainless Cosmos flatware set buy for 8

69 piece unknown pattern Cosmos flatware. Service buy for 8 in excellent condition. Simple wave design. Likely from the 1960s or 70s

8 dinner knives
8 dinner forks
8 soup spoons
8 iced tea spoons
8 cocktail/seafood forks
8 butter spreaders
16 teaspoons
2 solid serving spoons
casserole spoon
ladle
pie/dessert server