Stock Photo - 15 May 1982, Saxony, Delitzsch: In a physics cabinet of a polytechnic high school in Delitzsch, the new director prepares the equipment for teaching in mid-1982. The exact date of the photograph is not known. Photo: Volkmar Heinz/dpa-Zentralbild/ZB. - Delitzsch/Saxony/Germany

Stock Photo: 15 May 1982, Saxony, Delitzsch: In a physics cabinet of a polytechnic high school in Delitzsch, the new director prepares the equipment for teaching in mid-1982.

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