Pyrex Promotional Pattern: Hot 'N' Cold Chip and Dip Set

Year of Release: 1958
Official Name: Hot 'N' Cold Chip and Dip Set
Description: 403 and 401 bowls with turquoise "eyes" pattern on plain opal.
Notes: Unique chip & dip set in that large bowl is 2-1/2qt. vs. usual 4qt.