Black Panther / Blackie Swirl
Vitro Agate Company · 1940s-1950s
Identification summary
Vitro Agate opaque black base marble with wispy light gray-blue or white filaments and occasional amber/yellow brown slag-like highlights.
Visible record
- Maker candidate
- Vitro Agate Company
- Era
- 1940s-1950s
- Pattern
- Swirl
- Rarity assessment
- Uncommon
- Condition assessment
- Near Mint
- Size
- Standard (approx. 5/8 inch)
- Material
- Glass