Файл:US 401.svgDescriptionUS 401.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
Файл:US 401 (1948).svgDescriptionUS 401 (1948).svg 1948 style US Route 401 highway marker Date 7 January 2011, 16:48 (UTC) Source File:US XX (1948).svg Author Fredddie, Levente
Файл:US 401 (1961).svgDescriptionUS 401 (1961).svg 1961 style US Route 401 highway marker Date 13 December 2010, 07:27 (UTC) Source File:US XX 1961.svg Author Fredddie, Scott
Файл:US 401 (1926).svgDescriptionUS 401 (1926).svg Generic U.S. Highway marker, labeled for city use, from the First Edition of the Manual and Specifications for the Manufacture
Файл:Spacehab in shuttle.svg401 137 43 73 617 240 Extended Duration Orbiter English applies to jurisdiction: United States of America determination method: work of the federal government