1937 Siam 15 stg stationery cover from Vientiane to Chowan. Applied
with Qiaopiju vertical seal on reverse. Indicia tied by Bangkok 8
meter
1937 Siam 15 stg stationery cover from Vientiane to Chowan. Applied
with Qiaopiju vertical seal on reverse. Indicia tied by Bangkok 8
meter stamp.
1937年暹羅15士打郵資封自萬象寄潮安，背鈐信局直戳。郵資圖銷曼谷 8局機戳。許茂春著《東南亞華人與僑批》第139頁2-95原件。
