Blue Slag
Akro Agate Company · c. 1920s - 1940s

Identification summary
A vintage Akro Agate Blue Slag featuring a rich cobalt blue base with opaque white swirls. This marble shows the distinct manufacturing marks of early 20th-century machine-made glass.
Visible record
- Maker candidate
- Akro Agate Company
- Era
- c. 1920s - 1940s
- Pattern
- Swirl / Slag
- Rarity assessment
- Uncommon
- Condition assessment
- Near Mint
- Size
- Standard
- Material
- Glass