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One of the fascinating things about collecting porcelain is getting it home, taking out a magnifying glass and deciphering the marks on its underside. Marks, numbers and letters hold the clue to the date of manufacture, sometimes down to the exact year a piece was made. Some marks can even tell you the name of the artists who modeled and painted a specific porcelain. Here is some information about some porcelain artists/manufacturers:

James Hadley was the principal modeler of Royal Worcester and considered to be the finest ceramic modeler of the 19th century. His softly painted roses later became known as Hadley Roses by Royal Worcester collectors. In 1875 he set up his own modeling studio and Royal Worcester continued to absorb most of his output. In 1905, after Hadley's death, Royal Worcester purchased his factory including the transfer of all its molds, designs and workforce. Production of Hadley's designs continued, with a letter H added to the shape design number.

Royal Copenhagen, Denmark:

Royal Copenhagen porcelain is marked with a Crown and Royal Copenhagen Denmark in green and three blue wave marks (which represent Denmark's three straits). From 1935 on, a green dot was placed over or under one of the letters of the factory name. Each time the dot moves right to the next letter it represents an additional year. If you have a Royal Copenhagen porcelain from this period (1935 to 1984) you can easily identify the exact year the piece was made. From 1935 to 1949, the dot appears above one of the letters of Royal Copenhagen. From 1950 to 1984, the dot appears below one of the letters of Royal Denmark Copenhagen.

Royal Delft (De Porceleyne Fles), Holland:

The best known and most respected Delft factory in the Netherlands is De Porcelain Fles, founded in 1635. It is also known as Royal Delft since 1919, when it received a Royal warrant in appreciation for the quality of its products.

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