ALEXANDER (Claude A. Conlin, 1880 – 1954).ASK ALEXANDER. THE MAN WHO KNOWS. Circa 1920. Enormous color stone lithograph billboard poster with Alexander’s head wrapped in a question mark at the right, casting a wide gaze over the enormous crystal ball at the left (in which a “cradle to grave” scene can be viewed), held by a skeletal hand, all on a deep black background, framed above and below with purple block capitals. Approximately 110 x 197”, in separate sheets and unmounted, with wear, tiny losses, and original old folds, as issued.