I claim the ornamental design for a paver, as shown and described.
FIG. 1 is a perspective view of a paver in accordance with the present design;
FIG. 2 is a top view of the paver of FIG. 1;
FIG. 3 is a front view of the paver of FIG. 1;
FIG. 4 is a right side view of the paver of FIG. 1;
FIG. 5 is a rear view of the paver of FIG. 1;
FIG. 6 is a left side view of the paver of FIG. 1; and,
FIG. 7 is a top view of the paver of FIG. 1 with its environment shown in broken lines.
The broken line showing of the top faces of the paver in all drawing views represents unclaimed portions of the design. The broken line showing of the like pavers in FIG. 7 view represents environmental subject matter.