The ornamental design for a rearsurface of a cleaning article, as shown and described.
FIG. 1 is a plan view of a first embodiment of a rear surface of a cleaning article, embodying our new design; and,
FIG. 2 is a plan view of a second embodiment of a rear surface of a cleaning article, embodying our new design.
It should be understood that the different shading shown in the two embodiments of the rear surface of a cleaning article denotes color contrast. In the drawings, the broken lines along the outer edge of the figures represent the boundaries of the claimed design, and, in FIG. 2, the broken line separating the light and dark stippled areas represents environmental structure. The broken lines form no part of the claim.