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Moritz Hermann von Jacobi's Telegraph, 1843. Found in the collection of State Central Railway Museum, St. Petersburg .
HRM21A26_007

Moritz Hermann von Jacobi's Telegraph, 1843. Found...

Portrait of Moritz Hermann von Jacobi (1801-1874), 1837. Private Collection.
HRM21A25_479

Portrait of Moritz Hermann von Jacobi (1801-1874),...

Early electric motor, designed and built by the physicist and engineer Moritz von Jacobi Jacobi (1801-1874). Private Collection.
HRM21A24_496

Early electric motor, designed and built by the ph...