Research Centre

The Research Centre focuses on the study of the life of Marc Chagall (1887-1985), his graphic work and stained glass windows. The research is made possible by the WUYT Chagall collection, which consists of a large library, many documents and thousands of original graphics.  


The Research Centre can provide you with detailed information about a certain lithograph, etching, woodcut, heliogravure or pochoir. The Research Centre pays great attention to the authenticity problems in Chagall lithographs, etchings and woodcuts. Most of the forgeries in Chagall's oeuvre relate to works in these graphic techniques. But few people realize that there are hundreds of thousands of unauthorized works of Chagall in circulation. This involves thousands, since there are more fakes in circulation than Chagall authorized copies.


Certificates of Authenticity

We specialize in delivering Certificates of Authenticity. A declaration of authenticity assures both the buyer and the artist (in our case Marc Chagall and sometimes Charles Sorlier) of the authenticity of a work of art. Chagall was always intensely involved in publishing his graphic work, he was involved in printing, book production, circulation and, where applicable, numbering and signing. Together with the year of issue and the title of the work, these data form the basis of our Certificate of Authenticity. Click here if you want to know more about the Certificate of Authenticity.

Other areas of expertise

• Detailed information about a specific lithograph, etching or woodcut


If you want to know more about a certain lithograph, etch or woodcut made by Chagall, you can send us an email. Usually it contains specified information that is not accessible in another way. For such specific questions we charge € 100. You receive the result of our research by email or post.


• Certainty regarding the numbering and signature on a work by Chagall


The signature that the artist adds to his work provides added value, as well as the mention of the issue numbering. At most 5% of Chagall's original graphic work is signed and numbered. Because some art buyers only consider a work ‘complete’ if it is provided with a signature and numbering, one often finds a conceived number or a false signature at an original Chagall. Our research department can verify with great accuracy whether a work by Chagall is added with a signature and/or numbering. Moreover, we are able to identify false signatures and inadequate numbering fairly well. The costs are € 80 per research. The result of our findings is written down and sent to you by mail or letter.


• Clarity about the condition of a work of art

It is known that colors can fade. But the paper can also suffer from sloppy treatment or the effects of acids, moisture and drought. These are factors that also influence the value of the work.



Chagall Galerie Wuyt

Erik de Wolf * Gallery-owner

Spiegelgracht 32

1017 JS Amsterdam

+31(0 )642 694 446


Chagall Research Centre Wuyt

drs Pieter Zuidema M.A.-director 

Lange Leidsedw.str. 143 (bg)

1017 NK  Amsterdam

+31 (0)20 73 72 739  

+31 (0)624105863