Blue Slag Swirl
Alley Agate · 1929-1949 Late Classic Machine-Made
Identification summary
Translucent light-blue slag base with milky white swirl and dark cobalt blue ribbons wrapping around the marble.
Visible record
- Maker candidate
- Alley Agate
- Era
- 1929-1949 Late Classic Machine-Made
- Pattern
- Slag Swirl
- Rarity assessment
- Uncommon
- Condition assessment
- Near Mint
- Size
- Standard 5/8 inch to 3/4 inch shooter size estimated from finger hold
- Material
- Glass
Why this candidate
Best match for translucent periwinkle-blue base with opaque white swirl and dark cobalt ribboning, wispy slag structure and small trapped air bubbles typical of Alley machine production.