20th Century Animals Birds / Ornithology Fine Art Gouache Realism Swiss Walter Linsenmaier – Original Drawing of Birds – Beautiful Fine Details! February 24, 2014November 29, 2015 WCL 4365 Viewsbird, birds, natural history, Swiss Artist Walter Linsenmaier (1917 Stuttgart – 2000 Ebikon) Original drawing in colored chalk by world renowned illustrator of birds, insects and animals. Linsenmeier was a book author, illustrator whose works included “Wonders of Nature.” ShareTweetPinShare