Plovdiv-Filibe: 1857 Entire letter from Plovdiv to Bosnia struck with Arabic negative “An Canib Posta-i Filibe 256” (on behalf of Plovdiv Post Office 1840) handstamp in greenish blue (Coles & Walker fig. 16) with weight 3 Dirhem / postal charge 3 piastres 10 paras in manuscript at top left