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"
This scroll is made to be mirrored so that the two are used with a center piece, which I will probably upload later. This is a simple vector with smooth curves that will enlarge nicely, and no hidden lines to interfere with sign making operations.
The model of the speech circuit proposed by Ferdinand de Saussure in "Course in General Linguistics" (1966 [1916]). A conversation is an exchange of vocalized mental signs. The drawing uses the oak clipart by rg1024 http://www.openclipart.org/detail/colored-oak-tree-by-rg1024