cover 1917 (1 Aug) stampless, buff envelope to Neufchatel with "GARE D'OISSEL/SEINE INFRE" despatch c.d.s. and a fine strike of the boxed "GROUPEMENT/DE TRAVAILLEURS CHINOIS" in blue; light horizintal filing crease, fine. The Chinese Labour Corp was trained in Wei Hai Wei in 1917 before serving in France