Bidspirit auction | Champion Agate Company, Cobalt Blue

Champion Agate Company, Cobalt Blue Luster Glass Marbles, 9/16 Inch, Late 20th Century - A large collection of machine-made glass marbles manufactured by the Champion Agate Company. These pieces feature a high-gloss luster finish that exhibits a subtle iridescence under direct light. While the marbles appear opaque black in standard lighting, they are crafted from deep cobalt blue glass. This lot is representative of American machine-made marble production from the mid-to-late 20th century, commonly utilized for gaming and decorative purposes. Individual marbles measure approximately 0.557 inches in diameter. The items are in good condition with minor surface handling wear and light scuffing typical of glass collectibles. The marbles are free of significant chips, cracks, or structural damage.