China. (French China). 1886. Envelope addressed to Germany bearing France 'Type Sage' Yvert 92, 25c yellow tied by Shang-Hai/ Chine double ring (Pothion T84) with adjacent date stamp '30th Juil 86', endorsed 'per French Mail' with 'Ligne N Paq. Fr. No 8' date stamp on reverse '5th Aout' and Hamburg arrival.
This French Post Office in Shanghai is a scarce mechanical machine cachet described by 'Pothion' as a "Daguin" and was in use 1886 only.