How to Identify Antique Furniture: Construction Never Lies

Furniture is the category where the "construction never lies" principle does the most work — because styles were revived relentlessly (there are more "Chippendale" chairs from 1900 than 1760), while manufacturing methods have hard birthdates. Pull out a drawer and read the evidence.

Saw marks: the first timestamp

Look at unfinished surfaces — drawer bottoms, backboards, undersides:

• Straight, irregular marks = hand pit-saw, generally pre-1830s.
• Straight, evenly spaced = mechanical up-down mill saw, early-to-mid 19th century.
• Curved arcs = circular saw, common after ~1850.
• Glassy uniform smoothness = modern planing/sanding.

Joints: the second

Dovetails get their own guide, but the summary: few, wide, irregular hand-cut dovetails = 18th–early 19th century; uniform machine dovetails = post-1870s; and mortise-and-tenon with wooden pegs points earlier than glue-and-screw assembly. Staples and hex bolts speak for themselves.

Wood: the third

Primary woods follow fashion (walnut → mahogany → oak revivals), but secondary wood — drawer sides, backs, hidden framing — is the honest witness: period makers used cheap local timber (pine, poplar, oak by region) with hand-finished quality, while reproductions use plywood, MDF or suspiciously perfect matching stock. Wood identification details here. Shrinkage is evidence too: 150-year-old round tabletops measure slightly oval (wood shrinks across grain) — a perfectly round "Georgian" top is a young top.

Hardware and screws: the fourth

Screws and nails carry dates: hand-forged nails (pre-1800), cut nails (~1800–1890), wire nails (after); hand-cut screws with off-center slots (pre-~1850) vs machined uniformity. Check for extra holes and shadows — replaced hardware is routine and honest, but original hardware in original holes adds value, and hardware "older than" its holes exposes marriages.

Finish and surface: the fifth

Shellac (dissolves in alcohol — test somewhere hidden) dominated before ~1920; lacquer and polyurethane came after. Original surface with honest patina — wax depth, oxidation gradients, wear at touch points — is now prized above refinishing, a fact that changes restoration decisions entirely.

Labels, stamps and style — last, not first

Maker's labels and stamps clinch attribution when present; style vocabulary places design period. Both rank after construction because both were copied; saw marks weren't.

Field workflow

Photograph the tells — drawer sides, backboards, undersides, hardware — and run the set through the Antique Identifier app for a construction-aware read, then confirm big attributions with comps or an appraiser.

The bottom line

Date the making, not the look: saws, joints, secondary wood, fasteners and finish each carry decade markers, and their agreement — or contradiction — is the verdict on any piece of furniture in front of you.

Values mentioned in this guide are indicative ranges from public auction and marketplace results; condition, provenance and market timing move them substantially. For insurance or estate purposes, get a written appraisal from a certified appraiser.