Series: GSGS 4193. Sheet number F2. Edition 1. Based on the 28Â° 59' east of Greenwich longitude Istanbul. Magnetic declination is 12 minutes east of True North for the year 1941. "Copied from a map by 512 (A. Fd. Svy.) Coy. R.E. from Turkish original dated 1930.; Road classification revised from 1:800,000 Turkish sheet, Izmir. dated 1936." Blue overwrite is to give a grid reference on the mediterranean grid. Lambert conical orthomorphic proj. Located in the Lloyd Reeds Map Collection, call no. G 7430 s200 MC51D Sheet F2.