Antique marigold carnival glass bowl in the "Star and File" (also known as "Star Medallion" or "Star & File Panels") pattern, manufactured by the Imperial Glass Company of Ohio. The bowl features an iridescent finish that can shimmer in hues of gold, orange, and pink, a common characteristic of marigold carnival glass. Key Details Manufacturer: Imperial Glass Company (Ohio) Pattern: Star and File (or Star Medallion, Star & File Panels) Color: Marigold (orange iridescent) Era: Produced during the Classic Era of carnival glass, approximately 1910–1930 Design: It features a ruffled edge and an embossed pattern of star shapes within oval panels around the sides of the bowl.