<p>In October 1891, flourishing after a long period of Civil-War stagnation, the city of St. Louis got America’s first mail trolley up and rolling through […]</p><p>The post <a rel="nofollow" href="http://insider.si.edu/2017/06/mail-trolley-travels-brief-efficient-era-u-s-city-postal-history/">“Mail Trolleys” tracks era when mail was sorted all across town</a> appeared first on <a rel="nofollow" href="http://insider.si.edu">Smithsonian Insider</a>.</p>