Maker Labels and Stamps: Learning to Read Them

Maker Labels and Stamps: Learning to Read Them

A maker's label or stamp is one of the first clues you look for on a vintage piece. It is also one of the most misunderstood, because it is often treated as proof when it is not. A label helps situate and authenticate a piece, but it is always read in relation to construction, materials and provenance. Here is how to read these markings, how they changed at a few major makers, and which signs should make you cautious.

The different types of marking

Makers have used, across eras and materials, several forms of marking. On fabric or leather pieces, the woven or sewn label is common, sometimes discreet under a cushion or at the bottom of a backrest. On wood, you find glued paper labels, inked stamps or pyrography burned into undersides. On metal, the marking is often engraved or stamped directly into the material, or applied as a small plate or medallion.

Each support has its own durability logic. A paper label can peel off or tear, a woven label resists better but can come unstitched, an engraving in metal is the most lasting. This inequality explains why the absence of a marking is never, by itself, proof of non-authenticity.

How labels evolve over time

This is the most useful point for dating a piece. Makers change logo, company name, address, legal mentions and typography over the decades. Each change leaves a useful trace. At Knoll, the succession of company names, from the early years to Knoll Associates, Knoll International and then Knoll, places the production periods in broad terms. At Cassina, the marking of the I Maestri collection, often engraved with a number and the authors' signatures, distinguishes licensed pieces from copies, as we detail in our article on recognising authentic LC pieces.

Other houses follow the same logic. At Artifort, the Dutch maker associated notably with Pierre Paulin's designs, the label style tracks the brand's history. At Ligne Roset, the evolution of logo and labels reflects the shift from a historic French manufacture to a contemporary design brand. In every case, the rule is the same: a marking detail gives a chronological landmark, provided you cross it with the rest. The exact forms and dates of each label variant are a specialist's field, and it is better to reason by period than to claim a date to the year.

Recognising an authentic marking

Beyond content, the quality of execution tells you a lot. An authentic marking is generally sharp, well aligned, consistent with its support and era: a regular engraving on metal, a woven label with tight threads, a clean inked stamp. The typography matches that used by the maker in the relevant period, and the wording (house name, model, designation, possible designer signature or foundation logo) is consistent throughout.

Placement counts too. Each maker has its habits: under the seat, at the back of an upright, in a drawer bottom, on the reverse of a cushion. A marking placed in an unusual spot deserves closer examination. Here again, what counts is the overall consistency of support, content, execution, placement and era, never a single element.

The red flags

Several clues should prompt caution. A blurry, poorly printed label or stamp with irregular letters often clashes with the care the maker put into its markings. A screwed-on or glued plate where the house engraved directly into metal is suspect. A typography or logo that does not match the piece's supposed period, an anachronistic mention or approximate spelling should also alert you.

Beware too of inconsistencies: a label from a certain era on a clearly more recent construction, or the reverse, signals either a replacement or a falsification. Finally, a label in perfect condition on an otherwise heavily worn piece, or one too new for its supposed age, deserves a critical eye. None of these signs is enough on its own to rule a piece out, but several together call for caution and, in case of serious doubt, a specialist's opinion.

What we do

At LAPIERRE MARKET, we read the marking on every piece: type of label or stamp, comparison with the maker's known conventions, quality of execution, placement, consistency with construction and materials. We cross-check these clues with provenance, and we give an estimated period rather than an uncertain date. The marking is photographed in natural light and described in the listing. If you are unsure about a marking, you can send us a photo.