Last modified on 7 December 2014, at 00:04

Category:Colored U.S. Highway shields

English: Differing systems of color-coding were used on U.S. Route signs in a few states in the 20th century. The practice is now prohibited by highway standards.

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Media in category "Colored U.S. Highway shields"

The following 3 files are in this category, out of 3 total.