Term "Royal Vienna" refers to the style of porcelain painting that became very popular during late 19th and
early 20th century. There was no single manufacturer called Royal Vienna. Instead, there were dozens of
big and small porcelain decorators though out Germany and Austria who acquired blank plates from
Hutschenreuther, KPM, Rosenthal and other porcelain manufacturers, and had all the necessary resources
and equipment to paint, gild, glaze and fire these plates creating some absolutely amazing works of art.
The vast majority (up to 90%) of all the Royal Vienna style plates were decorated on porcelain blanks made
by Hutschenreuther factory, marked with either a shield or a circle with letters CMHR in it.
All Hutschenreuther plates have one of these two marks impressed on the back, together with a number
representing the plate's diameter in centimeters (usually 24, 24/5 or 25). The impression is often very faint,
hard to find and even harder to photograph:
Some blanks were purchased from KPM Berlin and marked with a blue underglaze scepter right in the
middle plus some impressed characters. Those characters are very important since they're impossible to
fake while the scepter can be fake. There is always an impressed letter surrounded by dots representing
the year of manufacturing.
Some blanks were purchased from Rosenthal.
The original green mark was usually covered with a gold flower and a blue beehive mark was added.