The ornamental design for an advertisingdisplay, as shown and described.
FIG. 1 is a perspective view of an advertising display, showing our new design;
FIG. 2 is another perspective view of advertising display showing our new design;
FIG. 3 is a top plan view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a front elevational view thereof;
FIG. 6 is a rear elevational view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a left side elevational view thereof.
The broken lines in the figures form no part of the claimed design. The surfaces or portions not shown in the drawings or described in the specification form no part of the claimed design.