The ornamental design for a fletching, as shown and described.
FIG. 1 is a perspective view of my new ornamental design for a fletching;
FIG. 2 is a first side view of the fletching of FIG. 1, the fletching having three such side views that are identical to each other;
FIG. 3 is a second side view of the fletching of FIG. 1, the fletching having three such side views that are identical to each other;
FIG. 4 is a rear end view of fletching of FIG. 1;
FIG. 5 is a front end view of the fletching of FIG. 1;
FIG. 6 is a perspective view of a second embodiment of my new ornamental design for a fletching;
FIG. 7 is a first side view of the fletching of FIG. 6, the fletching having three such side views that are identical to each other;
FIG. 8 is a second side view of the fletching of FIG. 6, the fletching having three such side views that are identical to each other;
FIG. 9 is a rear end view of fletching of FIG. 6; and,
FIG. 10 is a front end view of the fletching of FIG. 6.
An ornamental fletching that can be mounted to a shaft of an arrow or bolt is claimed and illustrated. Two embodiments are illustrated and the wavy lines in the second embodiment illustrated in FIG. 6 through FIG. 10 forms no part of the invention and indicate that no specific length is claimed.