Home›How to collect antique paintings›How to Read Signatures and Inscriptio...
How to Read Signatures and Inscriptions on Antique Paintings
A signature is a clue, not a verdict. Plenty of masterpieces are unsigned, plenty of forgeries are signed beautifully, and before the nineteenth century signing was the exception rather than the rule. What follows is where to look on an antique painting, how to read what you find, and what a signature can and cannot tell you.
The first thing almost everyone does with an old canvas is hunt for the signature. It is the right instinct pointed at the wrong certainty.
Corners first, then everywhere else
Where to Look for a Signature on an Antique Painting |
Start with the corners, lower right first, then lower left, the two conventional positions since the seventeenth century. Then widen the search. Painters signed on steps, ledges, rocks, the pages of painted books, the edge of a table, a scrap of painted paper, the trompe-l'œil cartellino of Italian tradition, even along the blade of an oar. Degas signed one famous café scene on a newspaper lying on the table.
Raking light, a flashlight held at a low angle to the surface, reveals signatures that have sunk into darkened varnish. Look at the stretcher and the back of the canvas too. Inscriptions, old labels and stamps on the reverse are often more informative than anything on the front.
 |
 |
| A full signature, cursive, laid in white over the canvas weave. | Lower right, at the edge of a heather landscape. |
Four kinds of mark
Reading What You Find |
Swipe →
| A full signature | Establishes the claim most strongly, especially when it matches documented examples of the artist's hand. Signature dictionaries and auction archives exist precisely for this comparison. | |
| Initials and monograms | Common, and whole reference works are devoted to decoding them. A monogram narrows the field rather than settling it. Combined with style, school and date, it can lead to a firm identification. | |
| A date | Beside a signature, a small treasure. It anchors the painting in a career and a moment. A date alone, without a name, still tells you when, which is half of any attribution. | |
| Inscriptions | Dedications, sitters' names on portraits, titles on the reverse, exhibition numbers in chalk. French inscriptions on the stretcher, old Salon labels, supplier stamps of Parisian colour merchants. These humble marks can localise and date a canvas with surprising precision. |
Three cases to know
The Signature That Is Not by the Artist |
Because buyers overvalue signatures, history has supplied them generously. Three cases account for almost everything you will meet.
Swipe →
| 1 | A later attribution | A dealer or owner in the past added the name they believed, or hoped, was correct. Common, and often in a different paint that sits on top of the aged varnish rather than under it. |
| 2 | A strengthened signature | A genuine but faded signature retraced by a restorer. Half honest, half problem. The underlying claim may be true, but the evidence has been overwritten. |
| 3 | A fraudulent signature | A famous name added to an honest period painting by another hand. The painting is old, the name is the lie. |
| A signature that sits crisply on top of the craquelure, instead of cracking with the paint around it, was added later. A signature applied at the time of painting ages with the painting. | ||
Professionals check signatures under magnification and ultraviolet light, exactly as they check restoration, and our guide to reading condition in an antique painting explains what UV reveals. When we catalogue an oil painting as signed, that examination stands behind the word.
Normal before 1800
Why So Many Antique Paintings Are Unsigned |
Here is the reframe that experienced collectors make early. Before the nineteenth century, signing was the exception, not the rule. A workshop's output was the master's product whether or not he wrote his name. Guild practice, patron relationships and the painting's documented history did the work a signature does today.
That is why Old Master attribution rests on style, technique and provenance, and why the attribution vocabulary exists at all. We set it out rung by rung in our guide to reading attribution on an antique painting.
Practically, this means an unsigned eighteenth-century oil painting is completely normal. What settles the question is the quality of the painting itself, not the presence of a name on the front. The same logic drives our guide to portraits of unknown sitters.
From the nineteenth century onward, by contrast, signing became standard professional practice. For a canvas of that era a signature is reasonably expected, which is why we photograph and describe the signature on every signed work we sell.
Five steps, in order
Reading a Signature in Five Minutes |
Swipe →
| 1 | Check the corners, lower right then lower left. |
| 2 | Sweep the whole surface in raking light, from one side. |
| 3 | Turn it over and photograph every label, stamp and inscription on the reverse. |
| 4 | Note whether any signature cracks with the surrounding paint, or sits on top of it. |
| 5 | Write down exactly what the marks say, letter by letter, including what you cannot read. |
| Five minutes of looking, done before any conclusions, is the foundation everything else builds on. | |
| → | The next questionAnd when the name on the canvas is not the painter?What a period copy actually is, and why after a master is a description rather than a warning. |
