Oneida's Classic Shell flatware pattern has a stainless fiddleback pattern that is adorned with a detailed shell motif. Oneida prestigious Classic Shell flatware pattern is as stylized as it is refined. This timeless design has been a favorite among foodservice operators for its superb finish, and its lasting appeal. Classic Shell is made of 18% chrome stainless steel and 10% nickel, a standard when it comes to high polish finish and rust resistant qualities.