Scale to GramsHow to Identify Antiques from a Photo: AI Identification Guide
Quick Answer
Photograph the item from front, back, sides, and especially the bottom (where maker's marks live). Capture marks, joints, and hardware in close-up. AI identifies category, era, style, and rough value range. For items appearing to be worth $200+, get a professional appraisal.
Try the Antique IdentifierAI antique categories
500+
furniture, pottery, glass, etc.
Best ID photo
Bottom / base
maker marks live there
Get appraisal threshold
$200+
AI estimate
Era Markers in US Furniture
Construction details narrow the age of US furniture more reliably than style alone.
| Feature | Pre-1850 | 1850-1900 | Post-1900 |
|---|---|---|---|
| Dovetails | Hand-cut, irregular | Mostly hand-cut | Machine-cut, uniform |
| Nails | Hand-forged, square | Cut nails, square head | Wire nails, round |
| Screws | Flat slot, off-center | Flat slot, centered | Phillips (post-1936) |
| Saw marks | Straight (pit saw) | Circular (1850+) | Band saw (1880+) |
| Glass | Wavy, bubbles | Some irregularity | Smooth, uniform |
| Wood finish | Shellac, oil | Varnish | Lacquer, polyurethane |
How to Photograph Antiques
Multiple angles: front, back, sides, top, bottom. The bottom is most important. Maker's marks, stamps, labels, and patent numbers live there. Close-ups of any text, signatures, or hallmarks. Show construction joints (dovetails, mortise and tenon), hardware (hinges, handles), and surface wear. Natural daylight, no flash.
What AI Identifies Well
Furniture styles (Victorian, Art Deco, mid-century, Art Nouveau) have distinctive visual signatures. Pottery and ceramics with maker's marks (Fiesta, Blue Willow, Roseville). Silver with hallmarks. Vintage toys (Steiff bears, Lionel trains, early Barbie). Clocks and watches from major makers.
Signs of Authenticity
Wood develops golden patina that cannot be faked. Wear is in places that get touched (chair arms, drawer fronts). Brass darkens, iron oxidizes. Hand-cut dovetails are slightly irregular. Hand-forged nails are square. Pre-1900 glass often has bubbles or waves. Suspect uniform "wear" everywhere or sharp machine-cut details on a "1700s" piece.
Value: AI Estimate vs Professional Appraisal
AI gives a value range based on recent comparable sales. For items the AI suggests are worth $200+, get a professional appraisal. Sotheby's, Christie's, and Heritage Auctions offer free initial evaluations. Condition (chip, repair, refinish) can swing value 5-10x and only a hands-on expert assesses it accurately.
Frequently Asked Questions
What is the best app to identify antiques from a photo?+
Top free options are Scale to Grams Antique Identifier, Google Lens, and the WorthPoint app. WorthPoint has the largest sold-price database for valuation.
How can I tell if an antique is real or a reproduction?+
Look for consistent age wear (patina in expected spots), hand-cut dovetails (irregular), hand-forged nails (square), and saw marks consistent with the claimed era. Suspect uniform "wear" everywhere or machine-cut details on items claimed to predate 1850.
Can AI tell me how much my antique is worth?+
AI gives a ballpark based on recent sales of similar items. For estimates over $200, get a professional appraisal because condition (which is hard to assess from a photo) often swings value 5-10x.
Where are maker's marks usually located?+
On the bottom or back of furniture, the underside or base of pottery and ceramics, the inside of jewelry, the back of paintings, and the underside of silver. Always photograph these spots.
How do I get a free antique appraisal?+
Major auction houses (Sotheby's, Christie's, Heritage Auctions) give free initial evaluations for items they consider potentially valuable. Local antique dealers will appraise informally, but their numbers may favor their own buying interest.
Should I clean an antique before photographing it?+
No, never clean an antique before identification or appraisal. Cleaning, polishing, or refinishing typically reduces value 50-90%. Photograph as-is with light dust removal only.
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