We claim the ornamental design for portable banner display, as shown and described.
FIG. 1 is a front perspective view of a portable banner display according to a first embodiment of the invention. The view from the adjacent front corner being a mirror image thereof.
FIG. 2 is a front perspective view of a portable banner display according to a second embodiment of the invention. The view from the adjacent front corner being a mirror image thereof.
FIG. 3 is a front perspective view of a portable banner display according to a third embodiment of the invention. The view from the adjacent front corner being a mirror image thereof.
FIG. 4 is a back elevational view of a portable banner display according to the first embodiment of the invention.
FIG. 5 is a back elevational view of a portable banner display according to the second embodiment of the invention.
FIG. 6 is a back elevational view of a portable banner display according to the third embodiment of the invention; and,
FIG. 7 is a side elevational view of a portable banner display according to the first, second, and third embodiments of the invention. The view from the opposite side being a mirror image thereof.
In the drawings, the broken lines represent environmental structure forming no part of the claimed design.
The banners has surface shading to show the flat surfaces of the banners.