The 2020 Summer Sale - Sale 333 Day 3

1893 Shanghai LPO Jubilee Issue 2c perf proof without black colour, with top left margin,
on unwatermarked paper, fresh MNH with lovely original gum, hinged on margin only. VF-F. Rare.
1893年上海工部書信館開埠金禧紀念有齿試印票，漏印黑色，带左上直角纸边，印于无水印纸上，带漂亮原胶，上品。罕见。