Ans_02775-195

DE: Magnetischer Reisetheodolit, 1891 entwickelt von Heinrich von Wild am Magnetischen Observatorium in Pavlovsk bei St. Petersburg. 1: Intensite horizontale
EN: Magnetic travel theodolite, developed in 1891 by Heinrich von Wild at the Magnetic Observatory in Pavlovsk near St. Petersburg. 1: Intensite horizontal

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