Black and White Swirl
Alley Agate · 1930s-1940s
Identification summary
A classic machine-made swirl marble featuring a dark chocolate brown or near-black base glass with swirling ribbons of white/grey.
Visible record
- Maker candidate
- Alley Agate
- Era
- 1930s-1940s
- Pattern
- Swirl
- Rarity assessment
- Common
- Condition assessment
- Good
- Size
- Small (13.7 mm)
- Material
- Glass