AI-assisted community identification

Black Knight / Toe Breaker

Akro Agate Company · c. 1930s - 1940s

Black Knight / Toe Breaker by Akro Agate Company, identification view
Community photograph · added 25 January 2026

Identification summary

A massive 1.33-inch solid black opaque glass marble, often referred to by collectors as a 'Toe Breaker' due to its impressive size.

Visible record

Maker candidate
Akro Agate Company
Era
c. 1930s - 1940s
Pattern
Solid Opaque
Rarity assessment
Uncommon
Condition assessment
Near Mint
Size
Toe Breaker
Material
Glass