Get a Lethiere Certificate of Authenticity for your painting (COA) for your Lethiere drawing.

For all your Lethiere artworks you need a Certificate of Authenticity (COA) in order to sell, to insure or to donate for a tax deduction.

Getting a Lethiere Certificate of Authenticity (COA) is easy. Just send us photos and dimensions and tell us what you know about the origin or history of your Lethiere painting or drawing.

If you want to sell your Lethiere painting or drawing use our selling services. We offer Lethiere selling help, selling advice, private treaty sales and full brokerage.

We have been authenticating Lethiere and issuing certificates of authenticity since 2002. We are recognized Lethiere experts and Lethiere certified appraisers. We issue COAs and appraisals for all Lethiere artworks.

Our Lethiere paintings and drawings authentications are accepted and respected worldwide.

Each COA is backed by in-depth research and analysis authentication reports.

The Lethiere certificates of authenticity we issue are based on solid, reliable and fully referenced art investigations, authentication research, analytical work and forensic studies.

We are available to examine your Lethiere painting or drawing anywhere in the world.

You will generally receive your certificates of authenticity and authentication report within two weeks. Some complicated cases with difficult to research Lethiere paintings or drawings take longer.

Our clients include Lethiere collectors, investors, tax authorities, insurance adjusters, appraisers, valuers, auctioneers, Federal agencies and many law firms.

We perform Guillaume Guillon Lethiere art authentication, appraisal, certificates of authenticity (COA), analysis, research, scientific tests, full art authentications. We will help you sell your Guillaume Guillon Lethiere or we will sell it for you.

Guillaume Guillon Lethiere was an 18th century painter, the son of a Frenchman and a freed slave from Guadeloupe . He is known in art history for his massive-sized history paintings, as well as being a painter of portraits. He was named the director of the French Academy in Rome and was also a professor at the Ecole des Beaux-Arts. He left behind a number of preparatory sketches for his large scale history paintings as well as many oil paintings, many of which are housed all over the world, including at the Louvre.

Still wondering about an 18th century French sketch or historical painting in your family collection? Contact us…it could be by Guillaume Guillon Lethiere.