Archivo:I-595.svgTraffic Control Devices, sign number M1-1, which states specifically on page I-1 that: Any traffic control device design or application provision contained
Archivo:I-595 (MD).svgDescriptionI-595 (MD).svg English: 750 mm by 600 mm (30 in by 24 in) Interstate shield, made to the specifications of sign detail (sign M1-1). Uses the
Archivo:I-595 (FL).svgDescriptionI-595 (FL).svg 750 mm by 600 mm (30 in by 24 in) Interstate shield, made to the specifications of the 2004 edition of Standard Highway Signs
Archivo:I-595 (1961).svgDescriptionI-595 (1961).svg English: 30 in by 25 in (750 mm by 625 mm) Interstate shield, made to the specifications of the 1961 MUTCD (specs from Caltrans)