FIG. 1 is a front view of a buckle of the claimed design.
FIG. 2 is a rear view of the buckle of FIG. 1.
FIG. 3 is a plan view of the buckle of FIG. 1.
FIG. 4 is a bottom view of the buckle of FIG. 1.
FIG. 5 is a right side view of the buckle of FIG. 1.
FIG. 6 is a perspective view of the buckle of FIG. 1.
FIG. 7 is an explanatory perspective view showing the buckle of FIG. 1 in use.
FIG. 8 is an explanatory side view showing the buckle of FIG. 1 in use.
FIG. 9 is a front view of a male member of the buckle of FIG. 1.
FIG. 10 is a rear view of the male member of FIG. 9.
FIG. 11 is a plan view of the male member of FIG. 9.
FIG. 12 is a bottom view of the male member of FIG. 9.
FIG. 13 is a right side view of the male member of FIG. 9.
FIG. 14 is a perspective view of the male member of FIG. 9.
FIG. 15 is a front view of a female member of the buckle of FIG. 1.
FIG. 16 is a rear view of the female member of FIG. 15.
FIG. 17 is a plan view of the female member of FIG. 15.
FIG. 18 is a bottom view of the female member of FIG. 15.
FIG. 19 is a right side view of the female member of FIG. 15.
FIG. 20 is a perspective view of the female member of FIG. 15.
FIG. 21 is a front view of a backing member of the buckle of FIG. 1.
FIG. 22 is a rear view of the backing member of FIG. 21.
FIG. 23 is a plan view of the backing member of FIG. 21.
FIG. 24 is a bottom view of the backing member of FIG. 21.
FIG. 25 is a right side view of the backing member of FIG. 21; and,
FIG. 26 is a perspective view of the backing member of FIG. 21.
It being understood that the broken lines are for illustrative purposes only and form no part of the claimed design.