Datei:US 321.svgDescriptionUS 321.svg English: 750 mm × 600 mm (30 in × 24 in) U.S. Highway shield, made to the specifications of the 2004 edition of Standard Highway
Datei:US 321 (1948).svgDescriptionUS 321 (1948).svg 1948 style US Route 321 highway marker Date 7 January 2011, 16:34 (UTC) Source File:US XX (1948).svg Author Fredddie, Levente
Datei:US 321 (1961).svgDescriptionUS 321 (1961).svg 1961 style US Route 321 highway marker Date 13 December 2010, 07:14 (UTC) Source File:US XX 1961.svg Author Fredddie, Scott
Datei:US 321 (1926).svgDescriptionUS 321 (1926).svg Generic U.S. Highway marker, labeled for city use, from the First Edition of the Manual and Specifications for the Manufacture
Datei:Agfa logo.svgto en.wikipedia. 2009-02-07 01:22 Klow 321×82× (3136 bytes) corrected the colors 2007-09-03 00:16 Vargklo 321×82× (2992 bytes) === Fair use in [[Agfa-Gevaert]]