Porsgrunds Porselænsfabrik, PorsgrundYear: 1909 – 1931 (form, price catalogs)Form: 1630, size 5 (16,5 cm), coffee service 1630Dekor nr.: 2093Tags: flowers, blue flowers, plate, reliefComment: This plate is not marked so it is possible it was made by other manufacturer using identical form. See also: