Plovdiv-Filibe : 1858 Registered entire letter from Constantinople to Plovdiv showing very fine strike of Arabic negative ‘An Canib Postahane-i Umumiyye’ (on behalf of General Post Office) seal in blue (Coles & Walker fig.6) with Arabic small negative ‘Taahhüt olunmuştur’ (has been registered seal) with weight 3 Dirhem / rate 4 piastres in manuscripr at middle of the entire.