THE 2021 SUMMER SALE - SALE 336 Day 3

1900 (Dec 18) Shanghai to Peking cover,
f.w. German ovpt. China 10pf, tied by Shanghai German PO cds. Addressee was the Ballon Section of China Field Force in Peking. Only a few similar covers exist. Good for aerophilately collection. VF-F.
1900年12月18日上海寄北京西式封，貼德國客郵10芬尼，銷上海德國客郵日戳。收件人為駐北京野戰軍氣球部隊軍官。類似的例子存世僅數件。早期之航空題材收藏品。背面蓋有英國野戰軍郵局1號到達戳。上品。