FIG. 1 is a perspective view of a lamp showing the claimed design;
FIG. 2 is another perspective view thereof;
FIG. 3 is a front elevational view thereof; a rear elevational view being a mirror image of FIG. 3;
FIG. 4 is a left side elevational view thereof; a right side elevational view being a mirror image of FIG. 4;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
The broken lines are directed to environmental features and are for illustrative purpose only; the broken lines form no part of the claimed design.