Item Description & Identification

• ​Type: Vintage Solid Opaque/Translucent Jadeite Green Glass Marble (Game / Industrial / Aggie style)

• ​Glass Composition: Uranium Glass (Jadeite / Green Glass with uranium oxide content)

• ​Color & Pattern: Uniform milky seafoam/jade green base with subtle internal micro-seeding and faint surface stippling characteristic of mid-century machine-made opaque glass.

• ​Makers (Likely): Akro Agate, Vitro Agate, or Peltier (commonly produced as game pieces, Chinese checkers marbles, or solid run shooters/players).

​UV Fluorescence

• ​Reaction: Extremely strong, vivid neon green glow under both longwave (395nm) and shortwave/midwave (365nm) ultraviolet light, confirming high uranium content throughout the matrix.

​Dimensions

• ​Diameter: Approximately 5/8 inch (~16 mm), standard player size.

​Detailed Condition Assessment

• ​Grade: Near Mint (+) (approx. 9.0 – 9.3 / 10)

• ​Surface Luster: Retains excellent, bright factory gloss across all sides with clean light reflections.

​Surface Wear & Flaws:

• ​No major chips, fractures, deep bruises, or distinct crescent moon hits.

• ​Very minor pinpoint flea bites/micro-pits and faint surface friction marks visible only under magnification/raking light.

​A few minute dark factory inclusions/micro-bubbles embedded just beneath or at the surface layer.

Estimated Era of Production

• ​Circa 1930s – 1950s (Depression through Early Post-War Era): Uranium salts were widely incorporated as a glass colorant during the 1930s to achieve this distinctive opaque "jadeite" seafoam tone. Domestic uranium use in consumer glassware was strictly regulated and halted by the U.S. government around 1942 for the Manhattan Project, then resumed in limited fashion in the 1950s using depleted uranium. Solid opaque game marbles and standard runs in this colorway were heavily produced during this window by West Virginia and Midwestern glasshouses (such as Akro Agate, Vitro Agate, or Peltier).

​Estimated Market Value

​While solid game pieces and monocolor marbles are more common than complex multicolored swirls or corkscrews, the strong UV glow (uranium glass) and Near Mint condition give it solid appeal to both vintage marble enthusiasts and uranium glass collectors.

Please review the attached pictures for additional details.  Shipping will be combined for multiple items purchased and shipped in the same package.