This dish, with its six tear-shaped depressions, borrows from the design of an oyster plate. The manufacturer adapted the form, adding a Star of David and the names of the ritual seder foods so it could be marketed as a Passover plate. It was probably originally sold in the famous spa town of Karlsbad (now Karlovy Vary) in Bohemia, where Jewish tourists flocked at the turn of the last century to enjoy the mineral waters and meet and greet. The repurposed dish is startling, since oysters are not kosher. Further, by the time this plate was made, the oyster had almost died out in Europe.