Opaque Blue - Solid Game Marble
Vitro Agate · 1940s-1950s

Identification summary
Machine-made solid opaque cobalt-blue game marble in peewee 11mm size with glossy wet-look finish and no internal pattern.
Visible record
- Maker candidate
- Vitro Agate
- Era
- 1940s-1950s
- Pattern
- Solid - No Pattern
- Rarity assessment
- Common
- Condition assessment
- Near Mint
- Size
- Peewee - 11mm (approx 0.43 inch, under 1/2 inch)
- Material
- Soda-lime Glass
Why this candidate
Solid opaque cobalt-blue with high-gloss finish and no visible pattern matches Vitro's mass-produced opaque game marbles most closely. 11mm peewee size was standard for Vitro bagged games and Chinese checkers sets.