File:Business Spur 75.svg600 mm by 600 mm (24 in by 24 in) Business Spur shield, made to the specifications of the 2004 edition of Standard Highway Signs (sign M1-3). Uses the
File:Business Spur 75 (1957).svgDescriptionBusiness Spur 75 (1957).svg English: 1957 version of the Business Spur I-75 Interstate Highway marker Date 1957 Source Own work Author Michigan
File:Coal Atlas.pdfThis file has an extracted image: Formation periods of the most important coal deposits worldwide.svg.
.svg){kind=link}