The lithograph features the dry stamps of the Magritte Foundation & ADAGP (Society of Authors in the Graphic and Plastic Arts) and is countersigned in pencil by Mr. Charly Herscovici, President of the Magritte Foundation, Chairman of the Magritte Museum and unique representative of the Magritte Succession. A proof of edition is printed on the back of the lithograph guaranteeing its authenticity.
