The short answer
A genuine antique usually shows a consistent story: the construction methods, materials, marks and wear all fit the age and use claimed. Reproductions, and pieces made to look older than they are, often contradict that story somewhere. Some reproductions are decades old and collectible in their own right, so "not original" is not always "not worth anything", but it changes what a piece is. For anything you may pay or ask a meaningful sum for, get an opinion from a qualified appraiser or a specialist dealer.
1. Read the wear
Real wear happens where hands, feet and objects touch a piece over many years: chair stretchers where feet rest, drawer runners, handle areas, the bases of ceramics and the edges of tabletops. Artificial distressing is often too even, appears in places that would not be touched, or shows repeated marks from chains, rasps or tools. Look for wear on hidden surfaces too, such as drawer bottoms and backs, which should look old and dry rather than freshly stained.
2. Look for tool marks
- Saw marks: older hand-sawn boards often show slightly irregular straight marks, while curved, regular arcs usually come from circular saws used in later production. Both can appear on genuine pieces depending on era and region.
- Dovetails: hand-cut dovetails often vary slightly in size and spacing. Perfectly identical, evenly spaced dovetails suggest machine work, which is common on later pieces.
- Planing: hand-planed surfaces may show subtle ripples you can feel with your fingertips.
3. Check screws, nails and hardware
Hardware changed over time, so it can be a useful dating clue. Very old screws were often handmade with irregular threads and off-center slots, while later machine-made screws are uniform. Phillips-head screws are generally associated with the twentieth century. Hardware gets replaced, though, so a modern screw on an old piece may be a repair. Look for empty holes, ghost outlines or color differences that show where earlier hardware sat.
4. Read marks with care
Maker's marks, labels and backstamps help identify pieces but are often copied. Compare marks with documented examples, looking at style, depth and placement. Country of origin marks can be dating clues: for example, many goods imported into the United States from the late nineteenth century onward were marked with the country of origin. A mark that has been ground off, a label that looks too fresh, or a famous name on a piece of ordinary quality deserves a closer look.
5. Check patina and finish
Genuine age shows as gradual changes: wood that darkens unevenly, metal that develops a soft, even patina, and finishes that wear through at high points. Signs of faked age include stain or paint applied over damage, dirt that wipes off too easily, rust or verdigris that looks powdery and uniform, and crackle finishes that are too regular. A newer finish over an old piece is common and not necessarily dishonest, but it can affect value.
6. Consider materials and weight
Old solid wood shrinks across the grain over time, so round tops can become slightly oval. Modern sheet materials, such as plywood or particleboard, in hidden parts point to later work. Cast metal reproductions often show soft, blurry details and rough casting. Reproduction glass and ceramics may be too light or too heavy, with different glazes, colors or mold seams. An ultraviolet light can sometimes reveal newer glues, paint or repairs, because many modern materials glow differently from old ones.
7. Watch for seller red flags
- Several "identical" antiques of the same rare type from one seller.
- Vague descriptions such as "antique style", "old look" or "in the manner of".
- A strong story but no photos of the back, underside, drawers or marks.
- Pressure to decide quickly, or reluctance to allow an independent inspection.
Where WorthAI fits
WorthAI can help you identify the likely type, style and maker of a piece from a photo and see what similar items sell for, with the listings behind the estimate. The estimate assumes the piece is the period original it appears to be. WorthAI is not an authentication or appraisal service, so use the checks above as a first screen and ask a qualified appraiser before relying on age or attribution.
Frequently asked questions
What is the difference between a reproduction and a fake?
A reproduction copies an older style and may be sold honestly as a copy. A fake is presented as something it is not, such as an original from an earlier period.
Are reproductions worth anything?
Some are. Older, well-made reproductions can have their own buyers, but they are usually valued differently from originals.
Does a maker's mark prove a piece is antique?
No. Marks and labels are often copied. Compare the mark with documented examples and check construction and wear as well.
Can WorthAI tell if my antique is a reproduction?
No. WorthAI identifies the likely item and estimates value assuming it is as it appears. A qualified appraiser should assess age and authenticity.