Willem De Kooning

Willem de Kooning (1904–1997) is a cornerstone of Abstract Expressionism and one of the most intensely studied artists of the 20th century. For appraisers, conservators, and collectors, his work presents both high reward and high risk: exceptional values for authenticated masterworks, alongside a saturated field of attributions, studio variants, and outright fakes. This guide distills what matters most when evaluating de Kooning across paintings, works on paper, prints, and sculpture.

A brief profile and why it matters to appraisers

• Biography in outline: Born in Rotterdam, trained as a commercial artist, de Kooning emigrated to the United States in 1926 and became central to the New York School. By the late 1940s, his black‑and‑white enamel paintings had already marked him as a force; early 1950s “Women” canvases and the landmark “Excavation” (1950) secured his role in the canon. He worked from New York City and, later, East Hampton.
• Signature periods that lead the market:
  • Late 1940s enamel abstractions.
  • Early–mid 1950s Women series and related figuration (“Woman I–VI,” “Gotham News”).
  • Circa 1960 transitional abstractions and landscapes (“Door to the River”).
  • Mid–late 1970s luminous East Hampton abstractions (e.g., “Untitled XXV”).
  • 1980s pared‑down, flowing abstractions—market interest is strong but varied due to debates over his late-career working methods and cognition.
• Media breadth: Oil paintings with complex layer histories; charcoal and oil works on paper; collages; editioned prints (notably lithographs, etchings); and small bronzes begun around 1969–1972. Each category has different valuation and risk profiles.
• Market reality: Blue-chip. Top paintings have brought in excess of $60 million at auction; trophy works have reportedly reached well into nine figures in private sales. Strong institutional exhibition histories and a deep scholarly record underpin confidence—when authenticity is secure.

Recognizing de Kooning: materials, technique, and tell‑tale traits

Knowing how de Kooning worked is a first defense against misattribution.

• Supports and grounds:
  • Paintings typically on stretched canvas; occasional board in studies or small works.
  • White grounds, often oil-based, with evidence of reworking. He sometimes returned to canvases over months or years; dates can reflect extended campaigns (e.g., 1950–52).
• Paint handling:
  • Physicality: Loaded brushwork, scraping back with knives or spatulas, squeegees, and rags. Expect pentimenti—buried forms and revisions—visible at raking light.
  • Wet‑into‑wet layers interleaved with wiping and re‑drawing; passages of paint can remain relatively soft or show wrinkling from plasticizers or slow‑drying oils.
  • Color: Creams, pinks, cadmium yellows, teal/viridian, and emphatic black/white contrasts. The 1970s abstractions favor clear, luminous color with looping forms and airy grounds.
• Drawing and collage:
  • Charcoal and graphite underdrawing often survives within paint layers; on paper, vigorous charcoal/graphite overlain with oil paint or pastel is common.
  • Collage elements (especially in early 1950s Women studies): cut and reattached forms, tracing paper, and glue residues may be present.
• Mediums:
  • Dominantly oil; earlier enamel or commercial paints appear in late 1940s works on paper and some canvases.
  • Pure acrylic paintings are atypical. Claims of early acrylic-only works warrant skepticism.
• Sculpture:
  • Small bronzes modeled in malleable material (e.g., clay/wax) and cast in limited editions, often with foundry marks and edition numbers.
• Signatures and inscriptions:
  • Paintings: Often “de Kooning” lower right; sometimes no signature at all. Dates on paintings are inconsistent. The “de” is lowercase in authentic signatures.
  • Works on paper: Pencil signatures present but not guaranteed. Authentic period paper and aging are critical.
  • Prints: Typically pencil‑signed “de Kooning” along the lower margin; edition numbers at lower left; publisher chop marks (e.g., ULAE, Hollander Workshop) and high‑quality wove papers. Beware of printed or plate‑signed facsimiles passed off as hand-signed.

Red flags:

• Fresh, glossy varnish on works that should be unvarnished.
• Anachronistic materials or supports (e.g., acrylic gesso on a work purportedly from the 1940s).
• “Household” frames and labels purporting to be from elite galleries but made with modern fonts or paper; fake gallery labels are common.
• Incoherent surfaces: timid brushwork, lack of revisions, or surfaces that feel “one shot” without the push‑pull of scraping and repainting.

Market overview: what drives value

• Period and subject matter:
  • 1950–55 Women series and closely related canvases command exceptional premiums.
  • 1948–50 black‑and‑white works and 1975–77 colorful abstractions are highly sought.
  • 1960s transitional abstractions vary by scale and quality; top examples are competitive.
  • 1980s works have a wide range; some museum‑exhibited paintings achieve strong results, but scrutiny is higher and comparables must be carefully chosen.
• Medium and scale:
  • Large oil on canvas leads the market, with a steep size premium.
  • Major works on paper (oil/charcoal) can reach seven figures; pure drawings trade lower, with preference for 1940s–50s material.
  • Prints: Hand‑signed, well‑provenanced lithographs and etchings typically occupy the mid‑five to low‑six figures for rarer images; common images and large edition sizes are lower.
  • Sculptures: Editioned bronzes are fewer in number and can realize substantial prices depending on subject, edition, and provenance.
• Provenance and exhibition history:
  • Early sales through Charles Egan Gallery, representation at Sidney Janis Gallery, and later Xavier Fourcade carry weight. Museum exhibitions and inclusion in major retrospectives (e.g., MoMA) greatly enhance value.
  • Archival documentation (invoices, correspondence, shipping tags) is pivotal; provenance gaps during high‑risk periods (e.g., “found in a storage locker”) warrant extra caution.
• Condition:
  • Buyers pay for surface quality in de Kooning. Excessive cleaning, “skinned” impasto, or overpaint materially depresses value. Stable, untouched surfaces carry premiums.
• Legal and ethical considerations:
  • The Willem de Kooning Foundation does not authenticate artworks. Independent, published scholarship and recognized experts are key.
  • Works deaccessioned by museums or with restitution claims require particular due diligence.

Authentication, provenance, and research pathways

• Catalogues raisonnés and archives:
  • A catalogue raisonné of paintings has been an ongoing research effort under the auspices of the Willem de Kooning Foundation and collaborating scholars. Inclusion or active research status is a major factor for high‑value works.
  • For prints, consult recognized publisher records and catalogues (e.g., ULAE, Hollander Workshop) and verify edition details, paper types, and chops.
• Technical analysis:
  • Pigment analysis (e.g., identification of titanium white versus earlier lead white usage), binder analysis, and solvent tests can confirm period plausibility.
  • IRR (infrared reflectography) and X‑ray can reveal underdrawing, revisions, and pentimenti characteristic of de Kooning’s process.
  • Paper dating (watermarks, fiber analysis) is critical for drawings—beware modern papers artificially aged.
• Expert opinion:
  • Seek opinions from curators or scholars with published work on de Kooning. Avoid pay‑to‑authenticate “letters” without recognized standing in the field.
  • For late works (1980s), ensure evidence of creation context—studio photographs, exhibition records, or contemporaneous documentation. The question with late works is not only authenticity but the degree of the artist’s hand and intent.
• Provenance building:
  • Corroborate each ownership link with primary documents. Compare names and addresses to period directories and gallery records.
  • Examine backings: original stretcher stamps, period tacking margins, and framers’ labels can align with claimed timelines. Document everything with high‑resolution images.

Condition and conservation risks specific to de Kooning

• Paint film sensitivity:
  • Many canvases are unvarnished and remain solvent‑sensitive. Do not clean with aqueous solutions or solvents without a qualified conservator. Abrasion risk is high.
• Metal soaps and efflorescence:
  • Fatty acid migration and metal soap formation (e.g., zinc/lead soaps) can cause surface hazing, translucency shifts, protrusions, or “weeping.” These are documented in mid‑century oils and in de Kooning specifically. Stabilization requires expert care.
• Interlayer cleavage:
  • Incompatibility between fast‑ and slow‑drying layers, or enamel under oil, can cause cleavage and cupping. Avoid temperature and humidity fluctuations; never apply pressure to the paint surface.
• Works on paper:
  • Charcoal and pastel are easily abraded; avoid spray fixatives, which can discolor or alter surface sheen. Use museum glazing with spacers and acid‑free mounts.
• Prints:
  • Watch for light‑struck margins, mat burn, and foxing. Flattening should be done by a paper conservator; verify that pencil signatures and edition numbers are not retouched.
• Sculpture:
  • Confirm patina integrity; over‑polishing, recent artificial patination, or loss of foundry marks diminish value.

Appraiser’s quick checklist

• Identify the medium precisely (oil vs. enamel vs. acrylic; support and ground). If “acrylic on canvas” is claimed for a 1940s work, stop and reassess.
• Map the surface: look for scraping, revisions, and pentimenti. A de Kooning that feels “one‑pass” is suspect.
• Verify signatures/marks: lowercase “de Kooning” for signatures; pencil signatures on prints; edition numbers and publisher chops that match known practices.
• Date plausibility: pigments, paper, canvas weave, and stretcher type must align with the claimed date.
• Provenance trail: build a document chain. Give more weight to primary sources and contemporaneous records; treat gaps with caution.
• Compare to period benchmarks: match composition, palette, and handling to securely dated, published works from the same period.
• Condition review: log solvent sensitivity, abrasion, metal soaps, overpaint, or restorations; seek a conservator’s report for mid/high‑value works.
• Exhibition and literature: check if the work (or closely related variants) appears in exhibition catalogues or scholarly texts.
• For prints: confirm edition size, paper type, chop marks, and whether the signature is hand‑applied; beware plate‑signed reproductions.
• Late works (1980s): require elevated scrutiny—studio context, exhibition history, and expert opinion are critical for valuation.

FAQ

Q: Did de Kooning use acrylic paint? A: Oil was his primary medium throughout his career. He experimented with various commercial paints, especially in the late 1940s, but pure acrylic paintings are atypical. Claims of early acrylic works should be examined closely with technical analysis.

Q: How do I tell an original de Kooning print from a reproduction? A: Look for a hand‑signed pencil signature, an edition number, and a publisher’s chop mark on appropriate paper. Under magnification, original lithographs and etchings show characteristic ink deposition and plate or stone texture. Many reproductions carry printed signatures or lack deckled edges and chops.

Q: Do the Willem de Kooning Foundation or the Estate authenticate artworks? A: The Foundation does not provide authentication services. For high‑value works, combine technical analysis, documentary provenance, published scholarship, and opinions from recognized experts. Inclusion in or active consideration for the catalogue raisonné carries significant weight.

Q: Are the 1980s paintings less valuable? A: Not categorically. Some late paintings with strong exhibition histories and recognized quality achieve substantial prices. However, variability in authorship concerns and surface quality means values are more sensitive to provenance, expert endorsements, and comparables.

Q: Should a de Kooning painting be varnished? A: Generally no. Most were left unvarnished to preserve surface dynamics. Adding varnish can alter appearance and complicate future conservation. Any surface treatment should be overseen by a qualified conservator.

For appraisers and collectors, de Kooning rewards careful, evidence‑based evaluation. The most successful outcomes marry connoisseurship—sensitive reading of touch, revision, and form—with rigorous science and airtight documentation.