Key takeaways
- "Antique" generally means 100+ years old; "vintage" usually means 20+ years.
- Maker's marks, materials, and construction methods are your best clues to age and origin.
- Never refinish, polish, or repair a possible antique before getting it looked at.
- Rarity, condition, and current demand set value, and age alone does not.
Look for clues
- Maker's marks, stamps, and labels on the bottom, back, or inside drawers.
- Hand-cut dovetails, irregular saw marks, and square nails suggest older furniture.
- Pottery and porcelain: backstamps, "Made in" country marks ("Nippon", "Occupied Japan"), and glaze wear on the base.
- Silver: hallmarks or "Sterling" versus "EP" or "EPNS" (plated).
- Glass: pontil marks, mold seams, and UV glow can help date it.
Don't destroy the value
Original finish and patina matter to collectors. Refinishing a piece of antique furniture, polishing old bronze, or cleaning coins can cut value dramatically. Photograph and research first, then decide.
What drives value today
Tastes change. Mid-century modern furniture, certain art pottery, and quality vintage lighting are in demand, while formal dining sets, many china patterns, and Victorian furniture often sell for far less than they did a generation ago. Recent sold prices, not price guides from years ago, tell you the current market.
When to get a professional
If research suggests an item may be worth more than a few hundred dollars, or you need a documented value for insurance or an estate, consult a credentialed appraiser (ASA, ISA, or AAA) or a reputable auction house. Many auction houses offer free evaluations from photos.
Frequently asked questions
How do I know if my antique is valuable?
Identify the maker, age, and material from marks and construction, then compare recent sold prices for similar items in similar condition. For potentially valuable pieces, ask an auction house or credentialed appraiser.
Should I clean an antique before selling it?
Light dusting is fine, but avoid refinishing, polishing, or repairs. Original finish often matters more to buyers than shine.
Prices and tips in this guide are general guidance for U.S. sellers based on typical resale markets. They are not a certified appraisal or a guarantee of what an item will sell for. For insurance, legal, tax, or high-value items, consult a qualified appraiser.