Colorado Cover Balance, 1860-1910's. 17 covers and 3 cards; early territorial usages including 1860's Mill City, Georgetown, Mountain City, Nevada and 1861 Denver City usage with enclosure and a swatch of wallpaper (mentioned in letter), later 19th century includes Golden City, Silverton, merchant letterheads & cover from Trinidad & Union City, corner cards including insane asylum & illustrated hotel; condition varied, generally F.-V.F. Estimate  $400 - 600. $0 (Image)