The small factory was founded in 1950 by Karl-Heinz Klette who next to plain white items also produced a large variety of items decorated in the Dresden style, hence the "D" in his mark. Klette later retired and left the business in the hands of his family who continued to produce porcelain decorations, gifts and souvenirs.
The next-door neighbours of Klette were the family of Lothar and Gisela Keilhauer, former employees and friends of Josef Franz Sieber who had a factory in Schwarza an der Saale near Rudolstadt until he was expropriated by the Soviets. Together, the three decided to relocate to Bavaria and settled in Küps. Sieber decided to retire there, but the Keilhauer family established a new business specialized on lace figures. As both the Keilhauer and Klette businesses were close together and both only produced a medium number of items, they started to share the production facilities as to increase efficiency and reduce overall costs.
So both businesses stated house #23 on Zettlitzweg as factory address, which was completely normal but did not match their business address, which obviously confused many people over time. Keilhauer's had their business office at Zettlitzweg #21 and used the facilities at Zettlitzweg #23. Karl Klette lived on the premises at Zettlitzweg #23 but had a showroom and office straight across the road at Zettlitzweg #20. The latter was eventually abandoned and made room for the building which from 2007 housed Oechsler Ceramics, an industry supplier.

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Used from 1952 until 1962, basic mark view.

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Used from 1952 until 1962, mark example in blue.

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Used from 1962 until 1990, basic mark view.

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Used from 1962 until 1990, here a double-stamped version.
(Picture: Sabrina)

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Used from 1962 until 1990. Marks from this period were applied in gold ...

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... or in a reddish brown, like this example.

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Used from 1990 until 2012, marks from this period were always applied in blue.

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Used from 2000 until 2012, crowned "K" for "Klette", all in blue.

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Used from 2002 until 2012, crowned "D" above "Karl Klette", all in blue.

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Example of the most commonly used certificate.
(Picture: Karl Klette company)