American Marble Makers: Identification Guides
Maker names are useful clues, not magic labels. Start with the glass in front of you, then use these company guides to compare construction, pattern and colour.
Construction first. Company name second.
Photograph both sides and both poles, note the seams, trace the colour through the glass, measure the diameter, then compare at least one plausible look-alike.
Choose a maker to explore
Akro Agate Marble Identification Guide
Identify Akro Agate marbles by construction, corkscrew patterns, Popeyes, slags, patches and oxblood colour, with history and common look-alikes.
Read the guidePeltier Glass Marble Identification Guide
Identify Peltier marbles including Peerless Patches, Picture Marbles, National Line Rainbos, Rainbos, slags and Banana cat’s-eyes.
Read the guideChristensen Agate Marble Identification Guide
Identify Christensen Agate marbles by single-stream construction, electric colours, slags, swirls, flames, Guineas, Cobras and hand-gathered traits.
Read the guide“Each maker used unique colours.”
Glass colours overlap between companies and batches varied. Pattern mechanics, seams, provenance and several documented examples carry more weight.
Build the identification around evidence
Cat’s-Eye Marbles: Identification, Age and Value Clues
Identify cat’s-eye marbles by their internal vanes, inspect possible vintage examples, and research value without treating every colourful eye as rare.
Read the guideMarble Pontil Marks: What They Tell You—and What They Don’t
Learn how to inspect marble pontil marks, distinguish damage from manufacturing clues, and understand why transitional marbles complicate identification.
Read the guideMarble Condition Grading: Describe the Damage, Not Just the Grade
Inspect chips, flakes, bruises and play wear, write a useful marble condition report, and compare prices without mistaking a grade for a guarantee.
Read the guide