【China Province Yunnan】
1898.9.15 Customs Szemao → 9.25 Customs Mêngtzû → 10.4 Laokay → 10.11 Hanoi → 10.12 Haiphong → 10.25 Ligne N → London.
Rate: 25 ctm international mail
Only 5 Customs Szemao covers are recorded.
Provenance: Steve Chazen

【思茅関實寄封】
1898.9.15思茅関→ 9.25蒙自関→10.4老街→ 10.11河内 → 10.12海防→ 10.25 法國郵輪→ 倫敦
思茅関實寄封存世記錄只有5件。
