Lamp

FIG. 1 is a front perspective view of a lamp, illustrating my ornamental design, with a rear perspective view being a mirror image thereof;

FIG. 2 is a first side perspective view, with a second side perspective view 180 degrees opposite the first side perspective view being a mirror image thereof;

FIG. 3 is an upper perspective view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a lower front perspective view, with a lower rear perspective view being a mirror image thereof; and,

FIG. 7 is a lower first side perspective view, with a lower second side perspective 180 degrees opposite the lower first side perspective view being a mirror image thereof.