The ornamental design for a handbag, as shown and described.
FIG. 1 is a perspective view of a first embodiment of a handbag of the present invention;
FIG. 2 is a front view of the handbag of FIG. 1;
FIG. 3 is a rear view of the handbag of FIG. 1;
FIG. 4 is a right side view of the handbag of FIG. 1;
FIG. 5 is a left side view of the handbag of FIG. 1;
FIG. 6 is a top plan view of the handbag of FIG. 1;
FIG. 7 is a bottom plan view of the handbag of FIG. 1;
FIG. 8 is a perspective view of a second embodiment of a handbag of the present invention;
FIG. 9 is a front view of the handbag of FIG. 8;
FIG. 10 is a rear view of the handbag of FIG. 8;
FIG. 11 is a right side view of the handbag of FIG. 8;
FIG. 12 is a left side view of the handbag of FIG. 8;
FIG. 13 is a top plan view of the handbag of FIG. 8; and,
FIG. 14 is a bottom plan view of the handbag of FIG. 8.
The broken lines showing the handbag strap, flap edge, interior pockets, interior zipper and footing are for the purposes of illustrating environment and form no part of the claimed design.