![](http://www.alamy.com/thumbs/6/41088221-7797-4FCE-B77E-BF4EF2BA73A0/2AP8EY2.jpg)
construction and improvement of roads, dikes and savings basins, supply mixture, sand bed Date: November 1959 Keywords: construction and improvement of roads, supply mixture, dikes and savings basin, sandbed
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Photo credit: © BNA Photographic / Alamy / Afripics
License: Licensed
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Keywords: