Clock

FIG. 1 is a front top perspective view of one embodiment of a clock showing our new design;

FIG. 2 is a bottom rear perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines illustrate portions of the clock that form no part of the claimed design.