cover -- 1846 (25 Apr.) entire letter from the Directorate of Police at Genoa (green cachet at upper left) to the Consul-General of Sardinia at Tunis, showing two different despatch d.s., unframed "P.D." in red and "DOPO LA/PARTENZA", a fine clear strike of the h.s. and, on reverse, Livorno transit d.s. Photo