Weir

FIG. 1 is a top left perspective view for a weir, showing the new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines of uneven length illustrate the boundary of the claimed design and form no part thereof. The broken lines of even length shown in the drawings illustrate portions of the component of the weir that form no part of the claimed design.