A patella cup, named from the Latin word meaning a small dish or kneecap, is a first-century A.D. Roman drinking cup with a double convex profile and a foot-ring.
Large Patella Cup, blown, tooled. Roman, 25-99. H: 7.2 cm, Diam: 10.1 cm. Bequest of Jerome Strauss. (79.1.121) http://ift.tt/1aOTrUa
Maria Sibylla Merian. Title page from Der Raupen Wunderbare Verwandelung und Sonderbare Blumen-Nahrung. [The Miraculous Transformation and Unusual Flower-Food of Caterpillars], 1679-1683.