falling rocks from the right hand side warning sign. Swedish Road Signs Collection on Wikicommons - URL http://commons.wikimedia.org/wiki/Category:Road_signs_of_Sweden information about why this image is in the public domain can be found there.
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Falling Rocks from RHS roadsign free icon was designed by ryanlerch for icons Png and presented to its users.
ryanlerch
12/25/2017