#664 4 qt. Round Casserole. New for 1975, it was made to go with Spring Blossom Green, Butterfly Gold, Snowflake Blue, Old Orchard, and, later, Homestead. These unusual large casseroles, dubbed "Big Bertha" by collectors, were discontinued in late 1976. Snowflake Blue and Homestead are less frequently seen, each only being offered one of those years. A rare "Polynesian" patterned version exists. A very good day at the thrift store; with a 75% discount, this one set me back $6.74 (plus tax).