There are various makers markings that identify Bohemian fine china as being created in Czechoslovakia. These marks are often found on the bottom or sides of the pieces. Most of the pieces, which have brightly coloured floral and bird motifs, date from 1918 to 1938. Some collections include more recent marks from the 1980s through 2006.
Bohemia became the centre of Czechoslovakia after World War I, hence items created after 1918 are labelled as being from Czechoslovakia rather than Bohemia. Numerous porcelain markings feature a crown symbol and the letters RK or RKG, which stand for Rudolf Kämpf Grünlas.
The nation of origin is displayed on certain marks. Dinner sets with a few tea and coffee servers are the most common items on Bohemian china with the RKG mark produced between 1911 and 1945.
In 1938, Nazi Germany acquired the Sudetenland, the borderlands of Bohemia with a predominately German populace. A crown, the letters RK, and an eagle mark with a swastika are seen on certain porcelain objects created between 1940 and 1950.
Some marks on items from 1945 and after have the words “China de Boheme” underneath the RKG mark and places cities like Lou?ky or Windsor above the crown image.