Pottery & porcelain · a closer look

Proletariy mark: Proletariy, 1976–2006

Mark details

First-quality mark.

1927–1930

c. 1930–1945

The source gives the 1930s to 1945.

c. 1930–1945

The source gives the 1930s to 1945.

c. 1930–1945

The source gives the 1930s to 1945.

c. 1939–1949

The source gives 1939 into the 1940s; the final year is decade-level precision.

c. 1939–1949

The source gives 1939 into the 1940s; the end retains decade-level precision.