The ornamental design for a displaycard for advertising, as shown and described in the drawings.
FIG. 1 is a front perspective view of the display card for advertising.
FIG. 2 is a front perspective view of the display card for advertising in a second state of use, with front outer layer removed showing the first inside layer.
FIG. 3 is a front perspective view of the display card for advertising in a third state of use, with both the front outer layer and the first inside layer removed showing the second inside layer.
FIG. 4 is a rear perspective view of the display card for advertising of FIG. 2 shown in the second state.
FIG. 5 is a front view of the display card for advertising.
FIG. 6 is a rear view of the display card for advertising.
FIG. 7 is a front view showing first inside layer of display card for advertising; and,
FIG. 8 is a front view showing second inside layer of display card for advertising.