Black Slag (Green Base)
Akro Agate Company · Early Machine-Made Era (1920s-1930s)
Identification summary
A classic machine-made slag marble featuring a base of extremely dense green glass that appears black under normal lighting, often referred to as a 'Blackie' or 'Black Forest' slag.
Visible record
- Maker candidate
- Akro Agate Company
- Era
- Early Machine-Made Era (1920s-1930s)
- Pattern
- Slag / Swirl
- Rarity assessment
- Common
- Condition assessment
- Poor
- Size
- Standard (approx. 5/8 inch)
- Material
- Glass