I claim the ornamental design for a fence rail, as shown and described.
FIG. 1 is a perspective view of the design of the of the fence rail;
FIG. 2 is a front elevational view of the fence rail taken along lines 2--2 of FIG. 1, this view being a mirror image of the rear elevational view of the fence rail
FIG. 3 is a top plan view of the fence rail taken along lines 3--3 of FIG. 2;
FIG. 4 is a bottom view of the fence rail taken along lines 4--4 of FIG. 2; and,
FIG. 5 is a side elevational view of a first side of the fence rail taken along lines 5--5 of FIG. 2, this view being a mirror image of a side elevational view of a second side of the fence rail.