cover 1913 (7 July) 7k. on 10k. stationery envelope registered to Pernov bearing unoverprinted 5k. pair and Romanov 3k., cancelled by small Shanghai double-ring d.s. (Type 5B), registration label adjacent and arrival c.d.s. on reverse. Pretty

細節
cover 1913 (7 July) 7k. on 10k. stationery envelope registered to Pernov bearing unoverprinted 5k. pair and Romanov 3k., cancelled by small Shanghai double-ring d.s. (Type 5B), registration label adjacent and arrival c.d.s. on reverse. Pretty