Tannu Tuva 1937 Pictorials on Cover. Neat large size cover franked with various values of the 1936 Pictorial regular & airmail issues, all tied by Kizil double circle 18.3.37 postmark, on registered cover to Switzerland, Lucerne receiver on reverse, Very Fine, scarce. Scott No. 72//C13  Estimate $200 - 300. $0 (Image)