Peter Keil is a German artist that focuses primarily on abstract expressionism. Keil painted with some of the greats including Joan Miró, Pablo Picasso and Andy Warhol, to name a few. The purple in this piece makes it beautifully unique and so fun! This piece was executed with acrylic on paper . It is signed “P. Keil” in the lower left corner. A Certificate of Authenticity from the artist is adhered to the verso. The art is in excellent condition with no flaws or chips to the paint.