1902 (30 Apr) “On Postal Service” registered envelope (embossed “Custom House, Wuhu” seal on flap) addressed to British Post Office Shanghai, showing Service des Postes circular cachet, unframed ‘R’ handstamp at left and Wuhu bilingual cds, reverse with black Shanghai Registered square circle of MA 2. Some slight ageing and mount marks on reverse. A rare envelope.