Christie’s | Old Master DrawingsPrints

Sotheby’s | Old Master Drawings & Prints

Onno van Seggelen Fine Art | Master Drawings & Prints, Rotterdam

Foolscap Fine Art | Old Master Drawings, Gouda

Artem Rare Books | Den Haag

Den Otter Fine Art | Rotterdam

Haboldt & Co. | Old Master Paintings and Drawings, Paris / New York / Amsterdam

Henri Godts, Brussels

C. & J. Goodfriend drawings and prints, New York Phillips

Valeria Belle Stampe, Milan

Katrin Bellinger Kunsthandel, Munich

Joseph Fach. Galerie und Kunstantiquariat, Frankfurt am Main

Swann Auctions, New York

Master Drawings, London

The Europian Fine Art Fair (TEFAF), Maastricht (NL)

Kunstversteigerer: Organisation of Sale rooms in Germany

Karl & Faber | Kunstauktionen, Munich 

Salon du Dessin, Paris

Works on Paper Art Fair, London

Art of the Print

Colnaghi, London

C.G. Boerner, New York / Düsseldorf

Galerie Bassenge, Berlin

Galerie Lempertz, Cologne

Flavia Ormond Fine Arts

Mattia Jona, Milan

Mia N. Weiner, Norfolk

Michael Miller

Venator & Hanstein, Cologne (book and graphic auctions)

Nicolaas Teeuwisse | Prints & Drawings

Crispian Riley-Smith, Skipton (England)streepje