Antique Furniture Identification: Date It by Its Build

To identify antique furniture, date it from how it was built before you judge it by its style: the joints, saw marks, screws, nails and hardware tell you when it was made, while the style only tells you what it imitates. M.S. Rau, a New Orleans antiques dealer, makes the point directly: many pieces were made in the style of an earlier time, so woods and construction details are what separate a period piece from a later one.

Work from the inside out. Pull out a drawer, turn a chair over and look at the back panel, because those surfaces were never meant to be seen and were rarely faked with care. Appraisily's dating guide puts the rule in one line: date from a bundle of evidence, and dovetails, tool marks and hardware should agree.

• Dovetails. NW Antiques describes hand-cut dovetails as slightly irregular with slender, delicate pins, prevalent before the late 19th century, and machine-cut dovetails as perfectly uniform with thick, evenly spaced pins, common from about 1880. Appraisily notes that hand-cutting persisted later in small workshops, so treat this as a strong hint, not proof.
• Saw marks. Straight, slightly wandering marks come from a pit saw or hand saw. Arcing marks come from a circular saw, which NW Antiques says was widely adopted around 1860.
• Screws. Early screws have irregular, tapering threads and off-centre hand-cut slots (NW Antiques). Phillips or Pozidriv screws are post-1930s and often post-war (Appraisily).
• Nails. Individually forged nails have square heads and tapered shafts (NW Antiques); cut nails are usually earlier than wire nails (Appraisily).
• Hardware. Original pulls leave a shadow or wear halo in the finish. A halo that does not match the current handle means the hardware was changed.
• Upholstery. M.S. Rau notes that tufting was invented in 1838, before mass-produced coil springs.

Style narrows the search once construction has given you a date range. These are the periods M.S. Rau uses:

• Louis XIV (France, 1643 to 1715): rectilinear, symmetrical, high-backed chairs, X-shaped stretchers, gilt bronze mounts.
• Louis XV (1723 to 1765): bombe commodes with curved fronts, bergere armchairs, lacquer and chinoiserie, marquetry.
• Louis XVI (1750 to 1793): straight legs, geometric forms, mahogany, restrained ornament such as ribbons and lyres.
• Early Georgian (England, 1714 to 1727): cabriole legs, central splat chair backs, ball or lion-mask feet.
• Middle Georgian (1727 to 1760): Thomas Chippendale's rococo, Chinese and Gothic chair backs; ball-and-claw feet.
• Late Georgian (1760 to 1820): lighter pieces, tapered straight legs, satinwood and other contrasting inlays.
• Regency (1820 to 1830): ancient forms revived, animal parts such as lion paws used as structure.
• Victorian (1837 to 1901): larger, darker, heavily carved; round pedestal tables with claw feet.
• Edwardian (1901 to 1910): lighter again, painted decoration, wicker and bamboo.
• American Federal (from about 1788): Hepplewhite and Sheraton patterns in local woods such as pine, tulip poplar, chestnut, white cedar, cypress and birch.
• Art Nouveau (1890 to 1914): flowing organic lines and whiplash motifs.
• Art Deco (1920 to 1945): clean lines, lacquer, shagreen and bakelite.

M.S. Rau also notes that mahogany is not likely in English furniture before 1720, which makes wood a useful cross-check.

Appraisily's guide to furniture marks lists four kinds, oldest first:

• Hand-carved initials: shallow and slightly irregular, with gouge or V-tool marks, on 17th- to 19th-century pieces.
• Stamped or branded marks: more uniform, often with the maker's full name, city and sometimes a date or patent number.
• Paper labels: from the mid-1800s, the best evidence when they survive, because they give the company name and location.
• Brass or copper plaques: on higher-end pieces, notably in the Arts and Crafts and Art Deco periods.

Look under seats and tabletops first, then inside drawers and on drawer bottoms, on back panels, behind doors, and on bottom edges and feet. The same guide says a documented maker can add from 30% to several hundred percent over a comparable unmarked piece.

Pencilled or stamped numbers are harder. The Parson's Nose, an antiques dealer, explains that numbers were often design or catalogue numbers, and that a year number may be a patent date rather than the year of manufacture; with no standard system, you need the maker first to read the number.

• Marriages. NW Antiques warns that pieces assembled from two antiques show differences in timber colour, grain and patina between sections, or joinery and proportions that do not match.
• Patina. Genuine wear varies: softer on high points, darker in crevices and protected areas (NW Antiques). An even colour everywhere suggests refinishing or artificial ageing.
• Marks that look too new. Appraisily lists too-perfect lettering, a mark cleaner than the surrounding surface, modern tool marks under the mark, and a mark type that does not fit the claimed period.
• Mismatch. Machine dovetails on a piece sold as early hand-made work, or Phillips screws in original positions, contradict an early date.

Identification comes first because value depends on the maker, the period and whether the piece is original. Once you know those, compare sold prices for the same maker and form, not asking prices. Our page on vintage furniture value explains the difference between retail, dealer and auction values and lists dated price references, and vintage appraisers near me covers free and paid appraisal options. Do not refinish or replace hardware before you know what you have.

Take a front and a side view of the whole piece, then close-ups of a drawer side showing the dovetails, the underside or back panel showing saw marks, a screw head, the hardware, and any label, stamp or number. AntiqLens can suggest the style, period and maker from those photos. Compare its answer with the construction clues above.

Research and drafting for this page were assisted by AI and checked line by line against the sources listed below. Prices are copied from the named auction house, dealer or guide with the sale date where the source gives one and the date we checked it; asking prices and estimates are labelled as such, and where a figure could not be confirmed we say so rather than estimate. If you find an error, tell us and we will correct it.