FIG. 1 is a left, top perspective view of a folding knife in an open configuration, showing my new design;
FIG. 2 is a left-side elevation view thereof;
FIG. 3 is a right-side elevation view thereof;
FIG. 4 is a front elevation view thereof;
FIG. 5 is a back elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a left, top perspective view of the folding knife in a closed configuration thereof; and,
FIG. 9 is a left-side elevation view thereof.
The broken lines depict portions of the folding knife in which the design is embodied that are not considered part of the claimed design.