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

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

Getting a Grooth 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 Grooth painting or drawing.

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

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

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

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

The Grooth 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 Grooth 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 Grooth paintings or drawings take longer.

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

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

Johann Friedrich Grooth was an 18th century German painter. He was best known for his portraits of animals, including pets and game birds. Still wondering about an 18th century German painting in your family collection? Contact us…it could be by Johann Friedrich Grooth.