Grey Onyx / Grey Swirl
Akro Agate Company · 1930s-1940s
Identification summary
A classic American machine-made marble featuring a light-colored base with darker, undulating swirl patterns.
Visible record
- Maker candidate
- Akro Agate Company
- Era
- 1930s-1940s
- Pattern
- Swirl
- Rarity assessment
- Common
- Condition assessment
- Fair
- Size
- Player (14mm)
- Material
- Glass