A LEERDAM UNICA GLASS DISH, designed by A.D. Copier, circular footed shallow shape , heavy clear glass, the well internally decorated with stylized fish amidst sea-plants, against a tin-crackled ground in opalescent blue, grey and green, enclosing a swirling blue band with a blue tin-crackled centre, engraved Leerdam Unica A.D. Copier and yearletter for 1943