China. (Boxer Rebellion). 1900. Stamp-less envelope headed 'Corps Expeditionnaire de Petchili' addressed to Lyon, France cancelled by 'Corps Exp. Tonkin Ligne N 8' double ring '6th Aout 00' with circular '18th Regt. de Infanterie de Marine/ Conseil D' Administration' on face in blue, signed by the Commander with Lyon arrival on reverse. Very fine.