Surface pattern for a dandy roll screen

FIG. 1 is a perspective view of a screen embodying our new design and applied to a dandy roll;

FIG. 2 is an enlarged view of a segment of the screen of FIG. 1 embodying our new design; and,

FIG. 3 is a cross-sectional view of a portion of the screen segment shown in FIG. 2.

The broken lines shown in FIG. 1 of the drawings are for illustrative purposes only and the subject matter depicted thereby constitutes no part of the claimed design.