The ornamental design for a handbag with decorativeseam, as shown and described.
FIG. 1 is a front perspective view of a handbag with decorative seam;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a right side view thereof, the left side view is a mirror image of the right side view;
FIG. 5 is a front perspective view of a second embodiment of a handbag with decorative seam;
FIG. 6 is a front view thereof;
FIG. 7 is a rear view thereof; and,
FIG. 8 is a right side view thereof, the left side view is a mirror image of the right side view.
The broken lines showing the outline of a handbag and handle throughout the views depict portions of the article and form no part of the claim. The heavy weight broken lines in FIGS. 1-3 depict claimed stitching. All the broken lines in FIGS. 4-8 including the stitching form no part of the claim.