This image was donated by Pearson Scott Foresman, an educational publisher, to Wikimedia Commons, and is thereby in the Public Domain.
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See http://commons.wikimedia.org/wiki/Category:Pearson_Scott_Foresman_publisher
A set of four signposts, each with appropriate shadow: Signpost; Signpost in a bucket of cement; signpost with a diamond-shaped "Rock Slide Area" sign; and a signpost with a rectangular "No Parking Bus Stop" sign in a bucket of cement with the logo "Property of Zenith Transit Authority"