OBJECTS Metamorphoses of Nature: Organic Morphology Shell, c. 1900 Johann Lötz Witwe glassworks, Klášterský Mlýn (Klostermühle) White opal glass, hot-formed, iridescent; width 15 cm Appearing in a great many varieties, shell-shaped decorative objects were a popular product of the Klostermühle works. The first pieces of this type appeared in the works’ output as early as 1893. The shell form reflected the aesthetic canon prevalent in the crafts morphology of Art Nouveau’s Organic phase.