This hand-formed glass plate or small platter has a large scallop shell molded on the underside. I have always thought it was part of the Party Marina line by Kosta Boda, designed by Goran Warrf but I’ve never found another like it so I can’t guarantee that. It is slightly irregular shaped around the perimeter & is thick glass, about 1/4". There are some other plates like t his with scallop shells but they’re all idealized versions of the seashell, not like this one that looks as if it was made from a mold of a real shell. It’s in nice shape, only the lightest signs of wear. Imagine serving gravlax & dill on it this summer! 10" diameter, 1/4" thick Glass Scallop Plate, Kosta Boda Party Marina…?