Indiana Glass Company, established in 1907 in Dunkirk, Indiana, became a prominent producer of pressed glass tableware and decorative items. They were particularly known for their carnival glass and later for their colored glassware, including the popular "Constellation" pattern. This pattern, often produced in various colors like amber, ruby, and blue, featured a distinctive diamond-cut design that caught and reflected light beautifully.

Amberina glass is a type of glassware that exhibits a color gradient, typically from amber to ruby red, achieved through a specific reheating process involving gold in the glass mixture. This technique, popularized in the late 19th century, creates a striking visual effect. Indiana Glass adopted and adapted this technique for their "Constellation" line, producing pieces that are highly sought after by collectors for their vibrant colors and intricate patterns. 941