Boulder Col. Aug 9. Second type territorial cds on cover with "United States Court, Little Rock, Arkansas" corner card & interesting original Boulder Advertising Letter Sheet enclosed, franked with 3¢ Bank Note & tied by target cancel, the sender was apparently traveling in Colorado for his health, Very Fine and attractive, a very scarce item with the used Advertising Lettersheet. Estimate  $100 - 150. $0 (Image)