1919-1920, Haller Army, since 1918 recognised as the legitimate Polish Army, group of three field post cards (ppc) to France: "DIRECTION de L'INSTRUCTION LE CHEF d'ETAT-MAJOR ARMÉE POLONAISE ORGANISÉE EN FRANCE", violet sender cachet on each field postcard with field mark: "TRESOR ET POSTES 311 20.8.19" // "TRESOR ET POSTES 311 11.3.20" // sender's cachet "Misja Wojskowa Francuska w Polsce / Secteur Postal 311 Kommendant Platnik Pillot" and comprehensive message.