found: Work cat.: Leufert, G. Sin arco, 1972(Consists of reproductions of drawings containing various arrow-shaped figures)
found: Wikipedia, Feb. 24, 2013(Arrow (symbol); "An arrow is a graphical symbol ... used to point or indicate direction, being in its simplest form a line segment with a triangle affixed to one end, and in more complex forms a representation of an actual arrow ... The direction indicated by an arrow is the one along the length of the line towards the end capped by a triangle. Arrows are also used, in some cultures, as a sign of danger, depending on the direction the arrow is pointing")
found: Webster's third new international dictionary, unabridged, via WWW, Feb. 24, 2013("something felt to resemble an arrow esp. in shape: as, a: a mark (as on a map or signboard) to indicate direction")
