Blue and White Swirl (Selenium Glow)
Akro Agate Company · 1930s - 1940s

Identification summary
A vintage machine-made swirl marble from the Akro Agate Company, highly prized by collectors for its hidden UV-reactive properties.
Visible record
- Maker candidate
- Akro Agate Company
- Era
- 1930s - 1940s
- Pattern
- Swirl
- Rarity assessment
- Uncommon
- Condition assessment
- Near Mint
- Size
- Standard (5/8")
- Material
- Glass