How to Date a Royal Copenhagen Vase

Written by kristie brown
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How to Date a Royal Copenhagen Vase
Royal Copenhagen porcelain is manuactured in Copenhagen, Denmark. (Copenhagen 1 image by gb from

Royal Copenhagen is a Danish company that began in 1775 after pharmacist Frantz Heinrich Müller discovered and perfected the recipe for making delicate porcelain. When the royal family became investors that same year, the company's viability was assured. The royal family ran the factory for almost 100 years until it became a privately held company in 1868. Royal Copenhagen continues to produce fine china and collectibles. If you're lucky enough to obtain or inherit a Royal Copenhagen vase, you can date it by using a guide provided by the company.

Skill level:


  1. 1

    Print out the Royal Copenhagen guide to dating their products which is found in the references section of this article.

  2. 2

    Turn your vase over gently, keeping a firm grip on it so that it doesn't slip through your hands. Take note of the mark stamped on the underside of the vase and refer to the guide to determine the origin. For example, if the underglaze stamp is just three blue wavy lines, your vase dates between approximately 1870 and 1890.

  3. 3

    Date your vase for the years going back to 1935 by referencing the green dots placed over or under one of the letters in the words Royal Copenhagen in the stamp. For example, if the dot is above the second "A," the vase was manufactured in 1946. If the dot is above both the "R" and "O," the vase dates between 1985 and 1991.

Tips and warnings

  • The same marks appear on the back of plates and the underside of other collectibles.
  • Since the company began in 1775, each porcelain item has been stamped with the three waves that signify Denmark's straits: The Sound, the Great Belt and the Little Belt.

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