1932 'Menge' Provisionals 20m. on 20c. brown and 5m. on 5c. purple, both with interrupted perforation, used on red-band cover from Ulan Bator to Kalgan, China probably via the northern Baikal route via the border city of Kjachta (Russian Trojckosavask), franked at arrival by Chinese postage due stamp 20c. blue and 30c. blue tied by bilingual KALGAN cds. A FINE AND SCARCE COVER FRANKED BY 'Menge' PROVISIONALS.