The Vintage Marble King Hybrid St. Mary's Cat Eye Marble is a rare and collectible toy marble from the pre-1970 era. Made by Marble King, this machine-made marble features a unique Cat's Eye style with a St. Mary's Cross design. Perfect for enthusiasts aged 4 and up, as well as collectors of vintage marbles, this one-of-a-kind piece is sure to add a special touch to any collection.