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This mask was made in 1937 by Cris Agterberg from a material developed by him, among others, based on concrete.
The book, CRIS AGTERBERG Sculptor and Ornamental Artist, contains two photos (image 98) of the artist with this unique mask. The book indicates that the mask was made in 1927. This is an understandable misjudgment, as until recently only these two photographs depicted in the book were known.
This work of art was probably considered to have disappeared until recently. The mask was bought by a good friend of his right after the Second World War, so shortly before the death of Cris Agterberg. We inherited it from him together with the paper mache mask (see other auction item)