China. (Boxer Rebellion). 1901. Envelope addressed to Lyon, France endorsed 'Corps Expeditionnaire de Chine' bearing Chinese Imperial Post SG 122, 1c ochre (5), SG 123, 2c red and SG 127, 10c green tied by Tresor et Postes Aux Armees 1. China 1.' double ring with Lyon receiver on reverse. Very fine item from the French Detachment in Peking during the Boxer Campaign.