Watchtower, built and decorated by Mary Colter, 1933. Watchtower, built and decorated by Mary Colter, 1933. Watchtower, built and decorated by Mary Colter, 1933. Watchtower, built and decorated by Mary Colter, 1933. Watchtower, built and decorated by Mary Colter, 1933. Watchtower, built and decorated by Mary Colter, 1933. Watchtower, built and decorated by Mary Colter, 1933. Duck on a rock Labels