Blue Slag
Akro Agate Company · 1920s-1930s

Identification summary
A vintage machine-made slag marble featuring a deep cobalt blue base with white opaque swirls.
Visible record
- Maker candidate
- Akro Agate Company
- Era
- 1920s-1930s
- Pattern
- Slag / Swirl
- Rarity assessment
- Uncommon
- Condition assessment
- Near Mint
- Size
- Standard (5/8 inch range)
- Material
- Glass