cover 1873 unfranked entire letter to Curzola showing a fine strike of the small "DURAZZO 7/10 73" c.d.s. in blue, with manuscript "15" rate mark in blue crayon adjacent and arrival c.d.s. (thimble type) on reverse; also 1866 unfranked entire letter from Durazzo to Curzola via Cattaro with two line maritime h.s. on front.