Black Onyx - Black and White Corkscrew
Akro Agate · 1930s-1940s

Identification summary
Machine-made opaque black base with thick opaque white corkscrew swirl, standard shooter size.
Visible record
- Maker candidate
- Akro Agate
- Era
- 1930s-1940s
- Pattern
- Corkscrew Swirl
- Rarity assessment
- Uncommon
- Condition assessment
- Near Mint
- Size
- Standard - approx 5/8 inch (16mm) based on palm scale
- Material
- Glass