The ornamental design for a necktie, as shown and described.
FIG. 1 is a perspective view of the necktie.
FIG. 2 is a plan view of the necktie from the top.
FIG. 3 is a plan view of the necktie from the bottom.
FIG. 4 is an elevation view of the necktie from the left side.
FIG. 5 is an elevation view of the necktie from the right side.
FIG. 6 is an elevation view of the necktie from the rear end; and,
FIG. 7 is an elevation view of the necktie from the front end.
The uniformly-dashed broken lines illustrating portions of the necktie form no part of the claimed design. The break-away lines shown in dash-dot-dash broken lines along the band indicate that any portion of the article beyond what is shown forms no part of the claimed design.