Disciplining the viewer's eye
A series of signs frame the barker, sharply focusing the viewer's attention.

Richard F. Outcault, "The Amateur Dime Museum in Hogan's Alley," cartoon, New York World 4 Oct. 1896; rpt. in R.F. Outcault's The Yellow Kid: A Centennial Celebration of the Kid Who Started the Comics, (Northampton, Massachusetts: Kitchen Sink Press, 1995) plate 39.