Auction 321 - 332 Europe & Overseas Asia / Africa, Europe A –Z, Collections & Accumulations - Day 4

1926: Provisional "Postage" overprint in purple on Fiscal 20 c. brown, a singl example on reverse of 1926 cover to Ulan Bator tied by superb strike of square framed "TSETSERLIG / MANDAL / MONGOLIA" datestamp in blue (June 26) with information strike alongside and actual despatch datestamp on obverse (June 30). "Ulan Bator" arrival cds (Julyy 2) in black on reverse. Cover trimmed at sides but a rare stamp and cancellation Michel 12 / Scott 20.