[C.O.C. & P.P. Express Label], the "Direct Your Letter Care" black on magenta label tied to 3c red Nesbitt entire with their Frank on back flap, by Denver City, K.T. Oct 30 1860 oval datestamp, the frank on reverse is atypically dated with "Oct 7" date, front with additional datestamp at left, handstamp, entered the mails with Leavenworth City Kas Nov 6 postmark, image of reverse here

(MWE Figure 12-18), ex Stach and Walske (Image)