Colorado Railroad Cover Collection, approximately 200 covers and cards neatly displayed on pages in four binders, with 10 agent marking covers and over 150 R.P.O. other markings (pre-1940); includes 1880 "Chey. Boulder & Den, Agt." cds (951-B-1, rarity IV), "Chey., Hughes & Den., Agt." cds discovery copy (950-C-1, rarity IV), 1884 "Den. & Georgetown, Agt" cds (952-A-1, rarity V), 1898 Denver & Grand Junction R.P.O. on stamp collar cover, 1883 Den. Pueb. & Lead., Agt. cds (953-D-1, rarity IV) on Denver & Rio Grande Railway corner card cover, choice strike of 1887 Denver & So. Pueblo, R.P.O. (955-H-1), 1880's Ft. Collins & Den. R.P.O. (951-A-1), 1888 Pueb. & Silver., R.P.O. (955-C-2), 1890-1908 Pueblo Transfer Clerk cds's, also an 1897 Denver and Rio Grande Express bill of lading and dozens of 1930-40's R.P.O. cuts; condition varied, generally F.-V.F. Estimate  $1,000 - 1,500. $0 (Image)