France. (Franco - Prussian War). 1870. Stamp-less envelope written from Weisbaden dated '29th December 70' addressed to France cancelled by Wiesbaden date stamp with 'Armee Du Rhine' hand-stamp with circular military cachet 'Sur Francaise de Secours Blesses des Armees de Terre et de Mer/ Comite Auxiliaire de St. Louis' in blue on reverse, routed via Switzerland with oval 'Agence Internationale/ Bale' in red on face, forwarded to Marseille '1st Jan 1871' and Saint Maximin arrival on reverse '2nd Jan'. Very fine item of mail from the Franco-Prussian War with contents.