The ornamental design for a mannequin with dress, as shown and described.
The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a front view of a mannequin with dress showing my new design;
FIG. 2 is a rear view thereof; and,
FIG. 3 is a left side view thereof, the right side being a mirror image thereof.