Requests for expertise and certifications

Selection of the latest expertises of works carried out and certificates of authenticity issued by the expert Pierre Guénégan.

Expertises for works by Serge Charchoune - Oger -Blanchet

Certificate of authenticity for a sale of a work by Augustin Lesage

Notice of inclusion of works in the supplement Volume 6 to the annoted catalog Serge Charchoune

Certificate of authenticity for a sale of a work by Augustin Lesage

Certificate of authenticity for a sale of a work by Augustin Lesage

Certificate of authenticity for a sale of a work by Augustin Lesage

Certificate of authenticity for a sale of a work by Séraphine Louis, known as de Senlis

Consultation and expertise for a work by Serge Charchoune

Consultation and expertise for a work by Serge Charchoune - Drouot sale presented by the Millon firm

Expert meeting for a work called Henri Rousseau, the authenticity of which is disputed by the buyer - May 2026

Authentication refused for a painting attributed to Henri Rousseau - June 2026

Expertise of a painted frame, loan of a work as part of the retrospective Séraphine Louis, De Senlis and unrivalled - Centre Pompidou Metz - Musée Maillol - 2026-2027

News

Selection of news concerning the catalogues raisonnés published by the expert Pierre Guénégan.

Video presentation of the annoted catalog Séraphine Louis

Exhibition "Séraphine" at the Galerie Dina Vierny

Inclusion in the first supplement : Volume 6 of the annoted catalog of the painted work Serge Charchoune

Article The Journal des Arts devoted to the annoted catalog Séraphine Louis dite de Senlis

TO BE PUBLISHED - Augustin Lesage – Annoted catalog of the painted work