The ornamental design for a handbag, as shown and described.
FIG. 1 is a front perspective view of an alternative embodiment of the handbag shown in FIG. 1;
FIG. 2 is a front view of the alternative embodiment of the handbag shown in FIG. 1;
FIG. 3 is a rear view of the alternative embodiment of the handbag shown in FIG. 1;
FIG. 4 is a right side view of the alternative embodiment of the handbag shown in FIG. 1 (with the left side view being a mirror image thereof);
FIG. 5 is a top view of the alternative embodiment of the handbag shown in FIG. 1; and,
FIG. 6 is a bottom view of the alternative embodiment of the handbag in FIG. 1.
The broken line showing of the handles, rivets, portions of the body of the bag and portions of the strap assembly with rings is for illustrative purposes only and forms no part of the claimed design.