Vintage West Virginia Vitro Agate Mixed Swirl Marbles UV Glow Lot of 25

A distinctive collection representing mid-century Mountain State glassmaking, featuring classic machine-made patch and ribbon construction characteristic of West Virginia producers such as the Vitro Agate Company and regional contemporaries like Alley Agate and Ravenswood. While the crisp, opaque white base glass accented by distinct equatorial banding and veneered patch ribbons aligns directly with classic Vitro Agate patterns (including the historical Superior and Tri-Lite lineage developed in Parkersburg and Vienna, West Virginia), West Virginia swirl manufacturers frequently shared tooling styles, glass formulas, and cullet stock. Under ultraviolet blacklight inspection, select examples illuminate with vivid cadmium-selenium orange and fluorescent uranium green glows alongside non-reactive marbles, providing strong variety across vintage glass chemistry and mid-20th-century American manufacturing heritage.