The Buyer's Guide to Vintage Mirrors: What to Look For Before You Buy

Mirrors are deceptive to buy. A frame can look rough in a photo and be a five-minute fix, or look fine and hide a cracked backing board that'll cost more to sort than the mirror's worth. I've bought hundreds of them over the years, and the good ones and the bad ones don't always announce themselves the way you'd expect.

Here's what I actually check before I hand over money for a vintage mirror.

Start With the Frame

The frame is doing most of the visual work, so it's worth the closest look.

• Timber frames — check the joints at the corners for gaps or movement, and press gently to feel for looseness. Minor chips and worn gilding are normal and often part of the charm. Cracked or missing sections of moulding are a bigger job, not impossible, but factor it into the price.
• Gilt and gesso frames — gesso (the plaster-like base under old gilding) is brittle and chips easily. Small losses are common and fixable. Large sections of missing gesso, especially on ornate corners, are a genuine restoration project — fine if you want one, but know what you're taking on. If you'd rather not take on gesso or frame repair yourself, our restoration service can restore it for you — send photos and we'll quote the job.
• Composite or plaster frames — common from the mid-century onward, these crack rather than dent. Run your hand around the edge feeling for hairline cracks, particularly at the corners where they take the most stress.

Foxing and Glass Condition — Not Always a Flaw

This is the one that trips people up. Foxing is the black, silver, or brownish speckling and clouding that develops on old mirror glass as the silvering backing degrades over time. New buyers see it and assume the mirror is "damaged" or needs replacing. Often it's the opposite.

Foxing is one of the clearest signs a mirror is genuinely old — it takes decades to develop naturally, and it's part of what gives an antique mirror that soft, aged character that reproduction mirrors can't fake convincingly. Light to moderate foxing around the edges, especially on a Victorian or Edwardian piece, generally adds to the value and appeal rather than taking away from it.

What to actually watch for:

• Desirable: soft speckling or clouding concentrated at the edges, an even aged patina across the glass, gentle darkening that doesn't obstruct your reflection in the centre.
• A genuine problem: heavy foxing right across the centre of the glass that makes it hard to actually use as a mirror, active flaking of the silvering that's still shedding, or a crack in the glass itself (as opposed to the backing).

If you want a mirror as a decorative, characterful piece, foxing is a feature. If you need a fully functional mirror for a hallway or bathroom, check the centre of the glass carries a clear reflection before you buy.

Mounts and Hanging Hardware

Often skipped, always worth ten seconds of attention:

• Check the backing board isn't cracked, warped, or water-damaged — especially on mirrors that have lived in a garage or shed.
• Test the hanging wire or D-rings. Old wire can be rusted through and looks fine until it isn't. Cheap to replace, but check before you hang anything heavy.
• For freestanding or cheval mirrors, check the pivot hardware moves smoothly and the frame is stable on its feet — wobble here is usually a structural issue, not a cosmetic one.

Reading the Era

A few quick cues that help you place a mirror roughly in time:

• Victorian/Edwardian — ornate gilt or dark timber frames, often oval, with heavier ornamentation.
• Art Deco — geometric shapes, stepped or fan detailing, sometimes with bevelled edge panels rather than a single sheet of glass.
• Mid-century — simple round or sunburst frames, teak or brass, minimal ornamentation.
• 1970s — heavier bevelled edges, sometimes framed in smoked or tinted glass panels rather than timber.

Bevelled edge glass is a good general sign of age and quality — it was more expensive to produce and tends to show up on better-made pieces.

Styling a Vintage Mirror

A good vintage mirror does more work in a room than almost any other single piece. A few things I keep coming back to:

• Lean a larger mirror rather than hang it — it reads more relaxed and avoids you needing to patch a wall if you change your mind.
• Pair an ornate gilt mirror against a plain wall so the frame is the feature, not competing with a busy backdrop.
• Use mirrors to bounce light into darker corners of a room — it's not just decorative, it genuinely changes how a space feels.
• Don't over-clean the glass trying to remove all the foxing. You'll usually just scratch the old silvering and make it worse. Clean the outer glass surface gently, and leave the backing alone.

A mirror with a bit of age and honest wear will almost always look better in a room than a pristine reproduction. Buy for character, check the structural basics, and don't let a bit of foxing put you off — it's often exactly what you're paying for.

Related Reading

• Styling with Vintage Rugs & Wallpaper
• How to Tell If Your Vintage Finds Are Actually Worth Something
• How to Identify and Date Vintage & Antique Furniture