Frequently Asked Questions

The WPI research teams are working to publish new digital catalogue raisonnés; we will also selectively update specific print catalogue raisonnés completed by the Wildenstein Institute in the form of a digital addenda. If you would like a work to be considered for one of these digital publications, please visit our “Research Requests” page and submit your request for inclusion:

Paul Gauguin, Paintings and Sculpture, 1873–1888 (addenda) and 1889–1903 (new)
Édouard Manet (addenda)
Albert Marquet (addenda)
Claude Monet (addenda)
Berthe Morisot (addenda)
Camille Pissarro, Gouaches and Pastels (new)
Odilon Redon (addenda)
Pierre-Auguste Renoir, Paintings, Drawings and Pastels (new)
Kees Van Dongen, Paintings (new)
Tom Wesselmann (new)

No. The WPI does not authenticate works of art or make any representation on the value of works of art.

We anticipate that the Gauguin digital CR of paintings from 1889-1903 will be available online by the end of 2020. The Renoir digital CR of still lifes will be available by early 2023. Other projects are ongoing, and specific information on a given work can be obtained prior to digital publication through our “archival request” portal.

Yes, the WPI will be commencing select and culturally important catalogue raisonné projects in the years to come. The most recent addition to our roster is the Catalogue Raisonné of Tom Wesselmann.

From time to time, the WPI will publish printed materials related to the artists and art historical periods under our study. All forthcoming catalogue raisonnés will only be published digitally.

No. The WPI does not seize, destroy or physically alter any work of art submitted for examination.

With the exception of Van Dongen, the works that were given “Attestations of Inclusion” by the Wildenstein Institute will be included in the relevant WPI digital catalogue. However, the WPI reserves the right to reconsider a previous decision.

Yes. On September 28, 2017, the WPI began preparing a new digital catalogue raisonné of the paintings of Kees van Dongen. We are grateful to Jean-Marie van Dongen for his support. Working in consultation with Dr. Anita Hopmans, Senior Research Manager at the RKD (Netherlands Institute for Art History) in The Hague, the WPI will continue to review oil paintings attributed to the artist for future publication online. At the moment, we are not preparing a catalogue raisonné for Van Dongen works on paper, and are not accepting any inclusion requests for such works.

If you would like to know if a work was ever issued an “Attestation of Inclusion” from the Wildenstein Institute, you must submit a Archival Request and pay a fee of $500, plus New York state sales tax.

If you want a written Letter of Determination from the WPI, then yes, you will need to submit a Request for Inclusion application and pay a fee of $2,000.

No. The WPI is not in possession of any of the Wildenstein Gallery records.

If your work does not have an original “Attestation” from the Wildenstein Institute, and you would like to receive a Letter of Determination from the WPI, you will need to submit a Request for Inclusion application and pay a fee of $2,000.

Each artist’s committee meeting convenes an average of four times a year, either in New York or Paris. You will be notified of the location and date of a forthcoming committee meeting once we receive your Request for Inclusion.

The WPI worked in consultation with Dr. Anita Hopmans, Senior Research Manager from the RKD (Netherlands Institute for Art History), The Hague on the formation of a new committee and research protocol to study the paintings of Kees Van Dongen. Any painting that was issued an “Attestation” by the Wildenstein Institute prior to September 2017 will need to be reviewed by the new committee to determine possible inclusion in the WPI digital catalogue raisonné.

Following the research and in-person examination of a work of art by scholars at a committee meeting, you will receive a letter from the WPI indicating that:

• the work will be included in the WPI Digital Catalogue; or
• the work will not be included in the WPI Digital Catalogue; or
• no determination about the work can be made.

If the work is to be included in a Digital Catalogue, the WPI will also provide information gathered by the WPI documentalists over the course of their research. This information should however not be considered an exhaustive account of history of the painting. It will only represent material that the WPI research staff was able to identify in our own archives and collect in the short time period before the committee meeting. Further research may be added or edited before publication in the online catalogue raisonné. What information is included on the Letter of Determination is at the sole discretion of the WPI, and will not be edited to match or support the research of other individuals or institutions.

Please submit a Archival request and provide a description of the kind of information you are seeking. This service requires a pre-payment of $500, plus New York state sales tax.