An extremely rare copy of Abel Buell’s New and Correct Map of North America (1784), one of only seven known to exist, is being auctioned by Christie’s on December 3. Buell’s map is the first map of the United States to be published in America; it also shows the U.S. flag for the first time on a map. The auction house expects the map to fetch between $500,000 and $700,000. The map has been owned by the New Jersey Historical Society since 1862; no word on why the Society is selling it. Via MapHist.