FIG. 1 is a front perspective view of a lock showing my new design;
FIG. 2 is a top view plan thereof;
FIG. 3 is a bottom view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a right elevational view thereof; and,
FIG. 7 is a left side elevational view thereof.
The broken lines indicating the disclaimed portions are for illustrative purpose only and from no part of the claimed design.