The depth of knowledge and expertise garnered over our years of experience at the Odon Wagner Gallery means that we are constantly requested to give professional advice to individuals, corporations and insurance companies. The services of appraisal and authentication continue to be in high demand.





We act as both the chemist and the historian to perform an authentication. With careful analysis, both microscopic and chemical, the signature and layers of the paint are studied. Using historical research and our knowledge of the artist, such factors as the artist's style, techniques and biography are considered. Assuming authenticity is established, our certificate is issued.



When a work is brought to us for appraisal purposes we take advantage of our worldwide network. Information from an international data bank, and our association with experts and dealers globally, supplements our extensive library and our years of experience. The provenance of the individual work is established, by an examination of labels, stamps or seals that denote the inclusion of the work in important collections or exhibitions.

Our position and our involvement in the marketplace enables us to make judgments that are accurate and expert. We would be happy to appraise your fine art or review for restoration or conservation to ensure their continued worth and the safeguarding of your investment.