1933 Sven Hedin, Peiping (May) to Sweden. Registered cover, f.w.
Northwest Scientific Expedition complete set + Martyrs 30c, tied
1933 Sven Hedin, Peiping (May) to Sweden. Registered cover, f.w.
Northwest Scientific Expedition complete set + Martyrs 30c, tied by
Peiping bilingual cds. Transit Shanghai (6 May). Especially
historical Sven Hedin cover.
1933.5 斯文赫定自北平寄瑞典。掛號封，貼西北科學考索團全 + 烈士3角，銷北平三格漢英日戳。5.6經上海。出自斯文赫定尤具意義。
