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art authentication-authenticity
All about art authentication - authenticity of artworks


Painting attributed to Caravaggio, was sold privately to American collector.
Attributed to Caravaggio by renowned art expert Turquin, the sale of a painting "Judith and Holopherne" which was to be held in Toulouse...
gerard van weyenbergh
Jul 26, 20203 min read


Olympia, by Manet, decrypted.
Her defiant look and her insolent nudity shocked all the good Parisian society who came to admire her at the Salon of 1865. Exit Venus...
gerard van weyenbergh
Jul 15, 20202 min read


Provenance of an artwork is primordial to obtain a C.O.A.
The provenance is the study of ownership of an artwork. It is essential in the research of authenticity of an artwork, the ownerships,...
gerard van weyenbergh
Jul 14, 20201 min read


An artwork is also a material substance with physical and chemical components
There are different ways of ensuring the authenticity of ancient paintings : - control of authenticity only through stylistic evaluation...
gerard van weyenbergh
Jul 10, 20202 min read


Expert responsibility if a fake artwork is sold.
In cases relating to forgery, the responsibility of experts is frequently sought, all the more since the expert has, in principle, an...
gerard van weyenbergh
Jul 9, 20201 min read


Responsibility of an auction house if a fake is sold.
In general, the auction house incurs its liability in the event of a fault during the sale. Its responsibility can be engaged for various...
gerard van weyenbergh
Jul 8, 20202 min read


An art expert: what he should be and do.
The role of the expert The role of the expert is the search for the truth. The expert in work of art covers a series of missions, all...
gerard van weyenbergh
Jul 7, 20203 min read


Restellini, Modigliani expert, sues Wildenstein-Plattner Institute
Often plagiarized, Modigliani continues to be the subject of a lively fight between specialists. Particularly, Marc Restellini, who had...
gerard van weyenbergh
Jun 24, 20202 min read


Free apps to have for the art amateur and the expert.
8 apps showing you the history of a painting, the value of the painting, the location, anecdotes and quotes, etc. A mine of information...
gerard van weyenbergh
Jun 19, 20204 min read


Disappointed new customer, contacts me for an art authentication
So many customers are spending tons of money to have poor research for authentication. Recently a customer contacted me with what she...
gerard van weyenbergh
May 19, 20202 min read


All about art authenticity, errors and scams on the net
I read the following about art authenticity: A formal certificate of authenticity is not necessarily required to prove a work of art is...
gerard van weyenbergh
May 18, 20203 min read


All about art authenticity, obtain a C.O.A. with chemical analysis.
Authentication of a painting with the help of scientific analysis The analysis of paint helps to 1- identify the manner an artist is...
gerard van weyenbergh
May 17, 20202 min read


All about art authenticity, art authentication is not a rigorous science.
Many scandals in the art world have caused lots of damage not only to the auction houses but also to the reputation of galleries,...
gerard van weyenbergh
May 16, 20202 min read


All about art authenticity, provenance is essential to obtain a C.O.A.
The provenance is the study of ownership of an artwork. It is essential in the research of authenticity of an artwork, the ownerships,...
gerard van weyenbergh
May 15, 20201 min read


All about art authenticity, the seven steps in an authentication process.
For example, a client in Abu Dhabi consults me to research a Picasso he discovered in his attic. Step 1: First, I ask the customer to...
gerard van weyenbergh
May 14, 20203 min read


All about art authenticity, is a Certificate Of Authenticity 100% sure?
In my opinion, it is impossible to have a 100% certitude that a painting that comes with a C.O.A. is authentic. Unless you bought a...
gerard van weyenbergh
May 13, 20202 min read


All about art authenticity, C.O.A. indisputable?
"Is a certificate of authenticity for an artwork, painting, watercolor, print, sculpture, necessary?" "Is a C.O.A. indisputable? " I am...
gerard van weyenbergh
May 11, 20202 min read
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