Sylvanus' map of Northern India, Central Asia and surrounding regions is one of the earliest obtainable maps of the area and the first printed in two colors.
The map appeared in Sylvanus' Claudii Ptholemaei Alexandrini liber Geographicae . . ., published in Venice in 1511. The Sylvanus edition of Ptolemy is one of the earliest to include maps with modern geographical updates.