Antique mirrors range from modest Victorian hall mirrors to ornate gilded Baroque masterpieces. The frame design, gilding quality, and age of the glass itself all contribute to value. Original mercury glass creates a distinctive soft, slightly gray reflection that modern mirrors can't replicate.
Typical Value Range
$50 – $50,000+
frame quality, gilding condition, and original glass determine value
What to Look For
How to Identify Antique Mirror Authenticity & Value
Frame construction
Carved wood frames with gesso indicate quality. Composition (plaster-like) ornaments molded onto flat frames are less valuable. Check the back for old wood and oxidized finish.
Gilding type
Water gilding (used in fine furniture) has a burnished sheen. Oil gilding is more matte. Both are more valuable than later gold paint or gold leaf applied over old gilding.
Glass age
Original mercury (tin-silver amalgam) glass appears slightly wavy and gray-toned. Modern replacement glass is perfectly flat and clear — original glass adds value even if foxed.
Style period
Chippendale mirrors feature scrolled pediments and gilt phoenix. Federal period mirrors have eglomisé (reverse-painted) glass panels. Victorian mirrors favor heavy carved walnut frames.
Foxing
Small dark spots on mirror glass are silver oxidation ('foxing'). Heavy foxing reduces value but is acceptable and expected in genuinely old mirrors.
Common Items
Popular Antique Mirror Items We Identify
Chippendale mirror
Federal mirror
Victorian overmantel
Gilt gesso mirror
Trumeau mirror
Art Nouveau mirror
Georgian convex mirror
Pier mirror
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FAQ
Frequently Asked Questions
Look at the glass — antique mirror glass is wavy, slightly grey, and may have foxing (dark spots). The frame back should show aged wood with hand-cut joinery. Mercury glass predates 1940.
Yes. Foxing (dark spots from oxidized silver) is expected in old mirrors and generally accepted by collectors. Heavy foxing reducing visibility does reduce value, but light foxing does not.
Original mercury glass, high-quality carved and gilded frame, documented provenance, and desirable style period (Chippendale, Federal) are the primary value drivers.