Black and White Swirl
Alley Agate · 1930s-1950s
Identification summary
Black swirl with wispy white interior, often smoky translucent when backlit.
Visible record
- Maker candidate
- Alley Agate
- Era
- 1930s-1950s
- Pattern
- Onyx Swirl / Patch Swirl
- Rarity assessment
- Uncommon
- Condition assessment
- Near Mint
- Size
- Standard - approximately 5/8 inch shooter size estimated from photos
- Material
- Glass
Why this candidate
Alley made very similar black-base white-swirl marbles with smoky transparency visible in image 2. Slightly less crisp white than Akro, matches cloudy gray transmission.