King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum
Two 5-needle telegraph transmitting keys for Cooke and
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum
Two 5-needle telegraph transmitting keys for Cooke and
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum
Two 5-needle telegraph transmitting keys for Cooke and
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum