If you’ve inherited pottery or have pieces you’re not sure about, this guide will help you make an initial assessment of whether your pottery is valuable before deciding whether to pursue professional evaluation.
1. Check the Bottom for a Mark
Turn the piece over. Most collectible pottery carries some form of identification on the base:
- Stamped or impressed maker’s name
- Monogram or logo mark
- Artist or decorator initials
- Shape or mold numbers
- Country of origin marking
Even a partial or worn mark is worth photographing and researching. This is the single most important step.
2. Identify the Maker
Certain makers drive consistent collector demand. In American art pottery, the most actively collected names include Rookwood, Grueby, Newcomb College, Teco, George Ohr, Marblehead, Pewabic, Van Briggle, Fulper, Roseville (early lines), and Weller (early lines).
If your piece is from a recognized maker, that’s a strong signal it may have value. If you’re unsure what the mark means, a specialist can help.
3. Know That Not All Marks Are Equal
Some marks that look significant have limited collector demand. “Made in Japan,” “Nippon,” and generic country-of-origin marks on mass-produced decorative ware rarely indicate high-value pottery. A pattern name without a maker’s mark tells you little. What matters is the maker’s identity, not just the presence of a mark.
4. Look at What It’s Made Of
The material gives you a starting point for identification:
- Earthenware — opaque, relatively lightweight, buff or red clay body visible at chips. Most American art pottery is earthenware.
- Stoneware — denser and heavier, grey or tan clay body, rings clearly when tapped.
- Porcelain — white, glassy body; thin walls show slight translucency when held to light. Common in European and Asian decorative wares.
5. Consider How It Was Made
Hand-thrown pottery — formed on a wheel — shows slight variations in wall thickness, faint throwing rings on the interior, and minor asymmetry. These are positive signs in art pottery.
Molded pieces have perfectly uniform walls and sometimes visible seam lines. Mold production isn’t automatically a negative, but hand-thrown examples from recognized makers are generally preferred by collectors.
6. Evaluate the Form and Glaze
Strong, sculptural forms and unusual shapes outperform generic or common examples from the same maker. Size matters too — larger pieces typically display better and are more sought after.
For glaze, look for:
- Depth and richness of color
- Velvety matte surfaces (the defining characteristic of Arts & Crafts pottery)
- Unusual or experimental effects — crystalline, iridescent, or oxblood glazes
- Even application without flaking or heavy wear
7. Check Condition Carefully
Condition significantly affects value. Examine:
- Rims and handles — the most vulnerable areas; run a fingertip around rims to feel for chips the eye might miss
- Hairline cracks — hold the piece to a strong light or tap it gently; a flat or hollow sound can indicate cracking
- Restoration — UV (black) light is the most reliable detection tool; repaired areas appear differently under UV than original glaze
Minor kiln flaws from original production — slight glaze variations, small drips, color inconsistencies — are not damage and do not significantly affect value.
8. Research Sold Prices
Before seeking an evaluation, look up what comparable pieces have actually sold for, not asking prices, but sold results. Crafted Auctions maintains a searchable archive of past results, you can look for pieces similar in form, glaze, and condition to what you have.
9. Common Misconceptions
- Old doesn’t automatically mean valuable: Age matters, but maker, design, and demand matter more.
- No mark doesn’t mean no value: Unsigned pieces with strong design and glaze can be highly collectible.
- Decorative complexity isn’t the same as collector value: Plain, well-resolved forms from recognized makers often outperform elaborate decorative pieces from the same period.
- An old appraisal may not reflect current value: Markets evolve, results from ten or more years ago may not reflect what buyers are paying today.
10. When to Get a Professional Opinion
If your piece has a recognized maker’s mark, unusual form, strong glaze, or you simply aren’t sure what you have — a professional evaluation is the right next step. A specialist active in the auction market will have current knowledge of demand that a general appraiser may not.
Request a Complimentary Evaluation
If you have pottery you’d like assessed and want to know if your pottery is valuable, our team is happy to help. Submit clear photographs of the piece, the base, and any marks, and we’ll provide an honest initial assessment based on current market knowledge.
Learn more:
CraftedAuctions.com JustArtPottery.com
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