Tri-Lite (Red, Yellow, White)
Vitro Agate Company · Mid-20th Century (c. 1950s-1960s)

Identification summary
A quintessential American machine-made marble featuring a three-colored internal ribbon suspended in clear glass.
Visible record
- Maker candidate
- Vitro Agate Company
- Era
- Mid-20th Century (c. 1950s-1960s)
- Pattern
- Cat's Eye
- Rarity assessment
- Common
- Condition assessment
- Near Mint
- Size
- Standard (approx. 5/8")
- Material
- Glass