Hinckley & Co.'s Express, Denver City (K.T.), mostly clear June 14, 1860 express company datestamp, used with and applied over mostly clear oval The Central Overland, California & Pikes Peak Express, Denver City K.T.', datestamp, also 3c Dull Red (26) tied by clear blue June 21, 1860 Saint Joseph Mo. datestamp, on brown cover with large western lands and mining propaganda map, to New Berlin Oh., mostly light wrinkling and soiling, otherwise intact and nearly very fine, scarce and attractive, Hinckley was an important express, operating between the mining towns of Colorado and Ft. Kearny N.T., this June 14, 1860 marking is the earliest recorded use according to Nathan