Automatic central battery telephone. Model 27. Siemens. 1927. Milan

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Automatic central battery telephone. Model 27. Siemens. 1927. Milan. National Museum of Science and Technology Leonardo Da Vinci. Milan. Italy.

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Size: 4122px × 2959px
Photo credit: © Prisma Archivo / Alamy / Afripics
License: Licensed
Model Released: No

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