AI-assisted community identification

Clear Patch (Black)

Master Marble Company · 1930s - 1940s

Clear Patch (Black) by Master Marble Company, identification view
Community photograph · added 26 March 2026

Identification summary

A classic machine-made marble featuring a transparent clear glass base with a single, broad, opaque black patch.

Visible record

Maker candidate
Master Marble Company
Era
1930s - 1940s
Pattern
Patch
Rarity assessment
Uncommon
Condition assessment
Near Mint
Size
Standard (5/8")
Material
Glass