Analysis of information sources in references of the Wikipedia article "Cable layer" in English language version.
The ship Seine laying the land end of the Brazilian submarine telegraph cable at Madeira, illustration from the magazine The Illustrated London News, volume LXIII, November 1, 1873.
The ship Seine laying the land end of the Brazilian submarine telegraph cable at Madeira, illustration from the magazine The Illustrated London News, volume LXIII, November 1, 1873.