Telegraph Block Instrument

Telegraph Block Instrument Telegraph block instrument Telegraph block instrument
Telegraph Block Instrument Telegraph block instrument Telegraph block instrument

License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

License this image for commercial use at Science and Society Picture Library

License

Science Museum Group
© The Board of Trustees of the Science Museum

Telegraph block instrument
Science Museum Group
© The Board of Trustees of the Science Museum

Telegraph block instrument
Science Museum Group
© The Board of Trustees of the Science Museum

Telegraph block instrument: tombstone wood-cased single-needle electrical flow-meter.

Details

Category:
Signalling & Telecommunications
Object Number:
1994-7111
type:
telegraph block instrument

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