cover 1918-19 "red band" envelopes (5, two opened-out) from Kulun bearing "Junk" issue frankings comprising 1c. + 8c. to Kalgan, 4c. + 5c. to Peking, 3c. + 6c. to Kalgan, 3c. strip of three to Kalgan and 2c. + 7c. (rare used in Mongolia) to Kalgan cancelled by bilingual "URGA" c.d.s. (Type 4d) two with Urga "Letter Box" Chinese c.d.s. A fine array of different 9 cents ordinary letter rate frankings