項次 1259

1935 and 1944 a pair of covers from Hwangyuan to USA, f.w. SYS issues, tied by Tsinghai Hwangyuan type 6 cds. Tangar was renamed Hwangyuan in 1930s.

1935及1944年一對湟源寄美國封，貼孫像票，均為青海湟源6型三格點線日戳。丹噶爾於1930年代更名湟源。