"English: Scan made by uploader from copy of Thomson's design sketch for the third tide-predicting machine, 1879-81, as published in Proceedings of the Institution of Civil Engineers, vol.65, 1881 --- too old to be in copyright.; 25 September 2009 (original upload date); Scan made by uploader from copy of Thomson's design sketch for the third tide-predicting machine, 1879-81, as published in Proceedings of the Institution of Civil Engineers, vol.65, 1881 --- too old to be in copyright.; en:J. J. Thomson (died in 1940); "

- Image ID: TWWXF7
"English: Scan made by uploader from copy of Thomson's design sketch for the third tide-predicting machine, 1879-81, as published in Proceedings of the Institution of Civil Engineers, vol.65, 1881 --- too old to be in copyright.; 25 September 2009 (original upload date); Scan made by uploader from copy of Thomson's design sketch for the third tide-predicting machine, 1879-81, as published in Proceedings of the Institution of Civil Engineers, vol.65, 1881 --- too old to be in copyright.; en:J. J. Thomson (died in 1940); "
Jonathan ORourke / Alamy Stock Photo
Image ID: TWWXF7