claim: Fred Seibert has only produced animated programs.
evidence: The silver mines of Kongsberg , in Buskerud county in Norway , constitute the largest mining field in Norway , with over 80 different mines .. silver. silver. Kongsberg. Kongsberg. Buskerud. Buskerud. Norway. Norway. mines. mining. It was the largest pre-industrial working place in Norway , with over 4,000 workers at its peak in the 1770s and supplied over 10 % of the gross national product of the Danish -- Norwegian union during its 335-year-long history  : over 450,000 man-years were expended in the production .. Norway. Norway. pre-industrial. pre-industrial. gross national product. gross national product. The town of Kongsberg houses the Norwegian Mining Museum , which houses collection of silver , tools , and machinery utilised by the miners , engineers , and doctors .. silver. silver. Kongsberg. Kongsberg. Norwegian Mining Museum. Norwegian Mining Museum