na: A watercolour entitled Pigeons. Circa 1950 Beautifully executed, would appear to be the original for a book illustration? 14 pigeons are illustrated. illustration is on art board and is sized 30cm x 26cm. It is presented under passe partout of 41cm x 37cm. in excellent condition. Hidden by the cards are the book edge / printing markers. To the reverse of the passe partout is a photocopy of the artwork with the birds labelled in German. Dittrich, Walter: (1881 Haida - 1976 Rorgenwies/Eigeltingen) German watercolourist and book illustrator.