Boulder, Colo., Aug 21, blue cds and matching target handstamp tying 3Ā¢ Banknote on cover to New York City, with original enclosure datelined "Peabody Springs, Colorado, Aug 18th, 1874" with content regarding travels in Colorado; cover missing backflap, otherwise Very Fine. EstimateĀ $75 - 100. $0 (Image)