1917 - Beijing: 2D on 5L ultramarine and pink with
1918/19
1917 - Beijing: 2D on 5L ultramarine and pink with local oveprint locale capital letters "2 DOLLARI Pechino". Extremely rare, only 15 copies known. Extremely fine and well centered. Cert. A.Diena and Manzoni (Sassone 30 - € 240.000)
