« Previous Pioneer Zephyr View Full Size All Images Millionth Mile achieved near Council Bluffs at 9:18AM December 29, 1939. First diesel-powered streamline train in America to enter regular service and to carry US Mail. Tags Addressed RailwayPostOffice Related Covers Stockholm Post Card 100th Anniversary of the Washington Ter… American Medical Association Charlotte and Kingstree Highway Post Of… 1931 First Flight Savannah to Raleigh WW2 Patriotic Cover