The Oldenkott factory, another ancient german pipe factory was closed in 1992. The pipes was also machine made and in general of mediocre quality. The most important pipes of Oldenkott was the so called "Porsche" design pipe. The bowl was turned like the motor block of a racing car an was laquered with a silver-grey colour. Today this special pipes are very rare and expensive. If have no idea of the grading system of Oldenkott.
Independent on what I say about the quality of both Oldenkott and VAUEN, the pipes are know as good smokers.