Study of Iris with caterpillar, underneath a cocoon and injected caterpillar, draughtsman: Albertus Steenbergen, 1824 - 1900, paper, brush, h 217 mm × w 162 mm.
Study of Iris with caterpillar, underneath a cocoon and injected caterpillar, draughtsman: Albertus Steenbergen, 1824 - 1900, paper, brush, h 217 mm × w 162 mm