Akro Agate planter, likely dating back to the 1930s or 1940s. Key features include: Material: Made of marbled slag glass, also known as Akro Agate glass, characterized by its swirled patterns. Design: Features a floral design in bas-relief on the exterior. Color: Predominantly white and green with some yellow. Function: Intended as a planter for small plants or flowers. Collectibility: Akro Agate items, including planters, are sought after by collectors of vintage glassware. Manufacturing: Produced by the Akro Agate Company, known for its distinctive marbleized glass.