Charts. Trieste, Gulf of. Gulf of Trieste (Golfo di Trieste), Adriatic, Mediterranean Sea, from Italian surveys to 1930; natural scale 1:70,000 at lat. 45°40′; Porto di Trieste and Baia di Muggia, from Italian surveys between 1924 and 1930, scale naut. m.=3.6 in., natural scale 1:20,000; no. 4069.