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24.1 x 31.2 cm ⏐ 9.5 x 12.3 in (300dpi)
ANN RONAN PICTURE LIBRARY / HERITAGE IMAGES / SCIENCE PHOTO LIBRARY ANN RONAN PICTURE LIBRARY / HERITAGE IMAGES / SCIENCE PHOTO LIBRARY
Completion of the St Gotthard Tunnel beneath the Alps, 1880. The tunnel was built to link Italy and Switzerland by rail. Workmen from the two ends of the 9 1/4 mile-long tunnel broke through the last piece of rock and met to complete the tunnel on 29 February 1880.
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