GSGS series 4228. Second Edition. Italian Istituto Geografico Militare map dated 1932 and revised from Air Photographs dated Oct., 1943 and Apr., 1944. Revised by the 49 Survey Coy., S.A.E.C. Jan. 1945 and reproduced by N2 Litho. Sec. M.M.P. and P. Coy., S.A.E.C. Mar. 1945. The meridians are based on the meridian of Rome, which is 12 degrees, 27 minutes and 7.1 seconds east of Greenwich. Contours at 10 metres (V.I.). North Italy Grid.
