Are Posthumous Bronze Sculptures ‘Original’ Art? The Foundry Verdict

The Question Every Collector Asks

Edgar Degas died in 1917. His studio held 73 wax and clay models, fragile, unfinished, never intended for public sale. He called them sketches. Within years of his death, foundries were casting them in bronze, edition after edition, well into the 1970s.

Are those bronzes original works of art? The answer depends entirely on who you ask and what they are trying to sell you.

What “Original” Actually Means in Bronze

A bronze sculpture is never a singular object. It is a process: wax model, plaster mold, lost-wax cast, patination, edition number. Every step introduces decisions, and every decision is made by someone other than the artist once the artist is dead.

The foundry that cast Degas posthumous bronzes, primarily the Hebrard foundry working from 1919, made choices Degas never approved: the surface finish, the patina color, which models to cast, the edition size (22 per model, far exceeding what Degas himself would have authorized).

Contrast this with the Valsuani standard: a maximum of 10 casts per edition, and only those the artist personally approved. When Fonderie Valsuani cast work for Pompon, Brancusi, or Maillol, the artist was present. The foundry executed. It did not interpret.

The French Legal Definition (And Why It Gets Ignored)

French law draws a clear line. A bronze cast during the artist lifetime, or under their direct supervision, with a maximum edition of 8 (plus 4 artist proofs), qualifies as an oeuvre originale. Everything beyond that is a reproduction.

The Hebrard Degas bronzes, cast 2 to 55 years after his death in editions of 22, fall outside this definition by any reasonable reading. Yet auction houses routinely describe them as original, because the word is commercially useful, legally imprecise in practice, and the art market has historically tolerated ambiguity where money is involved.

Three Categories You Will Actually Encounter

Lifetime casts (supervised by the artist): The gold standard. Valsuani-cast Pompon sculptures from the 1920s. Brancusi bronzes reviewed and signed before delivery. These are originals by any definition.

Estate-authorized posthumous casts: Made after death but controlled by the estate, from original molds, within legally defined limits. Debatable as original. Their value depends heavily on the quality of estate oversight and the foundry standards.

Commercial reproductions: Unauthorized casts, surmoulages (casts taken from existing bronzes rather than original molds), or editions that far exceed legal limits. These are copies, regardless of how they are labeled.

How to Tell the Difference

The foundry mark is your first line of evidence. A stamped foundry signature, Valsuani cire perdue, Hebrard, Susse Freres, establishes who cast it and when that foundry was active. Cross-reference the foundry active dates against the artist death date.

Edition numbers matter. A 4/10 from a foundry known for strict limits is meaningful. A 4/22 from a posthumous Hebrard Degas tells you the estate prioritized volume over scarcity.

Patina consistency is physical evidence. Valsuani Noir, the deep black patina developed at Fonderie Valsuani through torch patination, has specific surface characteristics that age in identifiable ways. A fake patina applied to a reproduction looks different under raking light. This is verifiable without laboratory analysis.

Provenance documents are the final layer. Sales receipts from the original foundry, exhibition records from the artist lifetime, correspondence between artist and foundry, these establish chain of custody in ways that are difficult to fabricate convincingly.

The Valsuani Position

Claude Valsuani, who founded the foundry at 74 Rue des Plantes in 1899, established a simple principle: the foundry serves the artist, not the market. His maximum edition of 10, lower than French law required, was not commercially optimal. It was artistically honest.

That standard is why Valsuani bronzes hold their value and their authenticity claim across a century. When you hold a Valsuani cast of a Pompon sculpture, you hold something the artist approved, in an edition size the artist agreed to, produced by craftsmen who understood they were executing someone else vision.

Posthumous bronzes can be valuable. They can be beautiful. But they are not, and should not be sold as, the same thing as a supervised lifetime cast. The art market comfort with that blur is a commercial choice. Collectors deserve to know it is a choice, and that the alternative exists.

Art Revisionist documents primary source evidence about the Fonderie Valsuani and the artists who worked with it. If you are researching a specific work, contact us with foundry marks, edition information, and provenance documentation.