We claim the ornamental design for a felling lever, as shown and described.
FIG. 1 is a front perspective view of the claimed design;
FIG. 2 is a front view of the claimed design of FIG. 1;
FIG. 3 is a rear view of the claimed design of FIG. 1;
FIG. 4 is a right side view of the claimed design of FIG. 1;
FIG. 5 is a left view of the claimed design of FIG. 1;
FIG. 6 is a top view of the claimed design of FIG. 1; and,
FIG. 7 is a bottom view of the claimed design of FIG. 1.
The ornamental design which is claimed is shown in solid lines in the drawings. Broken lines formed by equal length dashes show unclaimed portions of the design. Broken lines having a jagged element show that no particular length of the portion is claimed.