Lot
559 
Mountain City K.T., Sept. 22, 1860, manuscript postmark on 3¢ red (U10) buff Nesbitt entire to Kensington Conn., indicia showing second albino impression; cover with rough opening at right, otherwise Very Fine and rare Kansas Territory use, ex-Bauer.Estimate $750 - 1,000.
Mountain City in Gilpin County was one of the richest mining discoveries on the site known as "Gregory Diggings". The Post Office opened on January 17, 1860 while in the Kansas Territory. The office handled thousands of letters, and in October 1869 name changed to Central City.