This volume presents high-quality black and white photographs of over 100 illustrated covers that were mailed from or to cities in Colorado during the 19th century and early in the 20th. Written by Kenneth Segerstrom, it has a very informative introduction by Richard W. Helbock. La Posta Monograph Series, Volume 3 published by La Posta Publications, 1988,. Stapled card covers. Like new condition with no defects.