A small Soviet Porcelain Plate: "Proletariats of all countries, unite! 1917-1921", Rudolf Vilde, State Porcelain Manufactory, 1921

the cavetto centred with the number four painted black with floral design, commemorating four years of the revolution, and surrounded by brightly coloured flowers, the black vase obliterating an earlier Imperial design, the rim painted with the slogan in Cyrillic, with blue factory mark dated 1921 and green cypher for Nicholas II dated 1910