Mongolia 1941 MNH Provisional double surcharge both 15 mung and 5 mung on 5T. Originated from one of the best old Russian collection of Mongolia. Double surcharge is extremely rare.The item "Mongolia 1941 MNH provisional double surcharge both 15 & 5 on 5T Extremely rare" is in sale since Monday, February 15, 2021. This item is in the category "Stamps\Asia\Mongolia". The seller is "russiai" and is located in Turku. This item can be shipped worldwide.