I do not know the maker of the divided dish. It does not have the exact same markings on the tail part as the set. i did get these at an estate sale and they were together so I decided to keep them together.
Add a touch of vintage charm to your dining table with this stunning set of 4 shrimp cocktail glasses from Federal Glass. Crafted in the United States in the 1950s, these glasses come in a beautiful shell shape and are perfect for serving shrimp, cocktails, or any other delicious appetizer. The set includes four glasses and one divided clam shell dish, making it ideal for entertaining guests or for everyday use. The glasses are not handmade and are perfect for collectors of vintage dinnerware. Bring a piece of history to your table with this amazing set of glasses.
Related Items:

Vtg1950s Advertising Mountain States Plumbing & Heating Lighter Japan NOS

$39.95

---

VINTAGE 1950'S CORNELIUS BLUE RIBBON HYBRID PORCELAIN SIGN , BELLEVUE, IA.

$97.30

---

Vtg 1950’s The michigan daily newspaper University Of Michigan Dilly Lot Of 3

$39.99

---

---