DescriptionRail baseplate on dual gauge (1435 and 1600 mm) track, South Australian Railways.jpg
English: Rail baseplate on South Australian Railways dual gauge track – 1435 and 1600 mm (4'-81/2" and 5'-3") at the National Railway Museum, Port Adelaide. Before mechanical hammers became available, the narrow gap between the rails – about about 40 mm (11/2 in) – called for exceptional skill when driving in railspikes.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse
Captions
Rail baseplate on dual gauge (1435 and 1600 mm) track, South Australian Railways