Navigation Device

FIG. 1 is a front, left, and top perspective view of a navigation device, showing my new design;

FIG. 2 is rear, right, and bottom perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a left elevational view thereof; and,

FIG. 8 is a right elevationa view thereof.

The broken lines in the drawings depict portions of the navigation device and form no part of the claimed design.