细节
1889-1970, the valuable balance of the collection mostly mounted on leaves and representing range of both adhesives (mint and used) and covers, including forerunners with Russian P.O. covers (6), one cancelled by Urga double oval d.s. with posthorn, Chinese P.O. covers (4), 1924-31 issue covers (26) bearing many different frankings, mostly in combination with Chinese Definitives or Dues; post 1932 are particularly well represented and include many fine commercial covers, also scarce commemorative issues again with covers; some early covers with faults and a few adhesives removed. A fine nucleus for a specialised collection