We discovered these previously used cool highway signs used on Texas Highways and FM routes which are now retired but can be yours! 

This State of Texas highway sign was used during the early 2000's and uses the standard black Clearview font used on all TxDOT signage. Features four pre-drilled holes in each of the four corners.
 
Measures 10" x 7", metal and glavanized front. 
Each has some unique wear but otherwise, in good shape!