http://collections.mfa.org/internal/media/dispatcher/1064978/resize%3Aformat%3DfullI. Lady's Slipper. II. Blue Variegated Bearded Iris. III. Dark Variegated Bearded Iris. (I. Calceolus Mariae. II. Iris Portugalica. III. Iris Pannonica Variegata). Plate 6 from B. Besler, "Hortus Eystettensis", 1713 edition1613, published 1713Basil BeslerEngraving, hand-coloredPrints57.0000000000 Centimeter48.5000000000 Centimeterhttp://collections.mfa.org/objects/262106/rdf