Lock

FIG. 1 is a front, bottom perspective view of a lock, showing my new design;

FIG. 2 is a rear, top 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 plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is another perspective view of the lock, shown in an environment of use.

The broken lines are shown for the purpose of illustrating both parts of the lock as well as environmental subject matter. None of the broken lines form part of the claimed design.