Mongolia 1974 Diesel Train & PO Truck 50m (from UPU Centenary set) fine used, SG 821
Mongolia 1974 Diesel Train & PO Truck 50m (from UPU Centenary set) fine used, SG 821
Mongolia 1974 Diesel Train & PO Truck 50m (from UPU Centenary set) fine used, SG 821