In 1990 Constant's dog Waldo died. It's uncertain whether this is a drawing of a dead or sleeping Waldo.

A small printed booklet with poetry by Gerrit Kouwenaar and drawings by Constant. They created it in 1949 and it was supposed to be a little joke. This is also one of the lines in the booklet: 'Everyone considers themself to be a joke, A joke is allowed' The words and drawings are an expression of the playfullness of their creators where sometimes the words came first and the drawings followed as a reaction and sometimes the other way around.

Circa 1971.

Circa 1982

Circa 1999.