1859 - France 20c blue Napole'on III (Yvert 14), f

 1859 - France 20c blue Napole'on III (Yvert 14), from 'MILANO 27/6' to Paris, with red 'N.D.' ('Non De'bite'') alongside. Extremely rare letter sent by a French soldier in Lombardy during the war against Austria, handed in at a civilian post office (rather than military post) and nevertheless accepted. Only three such letters known from Milan. Initials Bottacchi and cert. Roumet (Yvert 14 - Euro -)