The product is a vintage Akro mix of "dug" cullet marbles, featuring Superman and other designs, made at the Akro Agate facility in Clarksburg, West Virginia. These machine-made marbles are from the 1930s and are considered pre-1970 vintage glass pieces. The set includes 14 units, perfect for collectors of vintage marbles aged 12 years and up. Made in the United States, these unique marbles showcase the artistry and creativity of Akro Agate.