Blue and White Swirl
Alley Agate Company · 1930s-1950s

Identification summary
Vintage transparent blue swirl with white wispy ribbon, machine-made.
Visible record
- Maker candidate
- Alley Agate Company
- Era
- 1930s-1950s
- Pattern
- Ribbon Swirl
- Rarity assessment
- Common
- Condition assessment
- Near Mint
- Size
- Standard Player (~5/8 inch / 16mm estimated from finger scale)
- Material
- Glass
Why this candidate
Alley made many transparent blue base swirls with white ribbons. Color and wispy pattern are consistent, but Alley glass usually shows slightly more bubbles and less saturated cobalt.