Prize Onyx (Amber & White)
Akro Agate Company · 1930s-1940s

Identification summary
A classic machine-made marble featuring a prominent spiral ribbon on a contrasting translucent base.
Visible record
- Maker candidate
- Akro Agate Company
- Era
- 1930s-1940s
- Pattern
- Corkscrew
- Rarity assessment
- Uncommon
- Condition assessment
- Near Mint
- Size
- Standard (5/8 inch / 16 mm)
- Material
- Glass