I claim the ornamental design for a necktie, as shown and described.
FIG. 1 is a perspective view of the necktie;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is an enlarged detail view of the flower motif in the front elevation view; and,
FIG. 9 is a perspective view of the necktie shown in an alternative configuration in an exemplary environment of a packaging box.
The broken lines shown in FIG. 8 represent the bounds of the enlarged detail view and form no part of the claimed design. The broken lines shown in FIG. 9 represent environmental structure that forms no part of the claimed design.