We claim the ornamental design for a lamp, as shown and described.
FIG. 1 is a side view showing a first embodiment of our new design for a lamp. Only one side view is shown since all sides are the same.
FIG. 2 is a top view of the first embodiment of our new design shown in FIG. 1.
FIG. 3 is a bottom view of the first embodiment of our new design shown in FIG. 1.
FIG. 4 is a perspective view of the first embodiment of our new design as shown in FIG. 1.
FIG. 5 is a side view showing a second embodiment of our new design for a lamp. Only one side view is shown since all sides are the same.
FIG. 6 is a top view of the second embodiment of our new design shown in FIG. 5.
FIG. 7 is a bottom view of the second embodiment of our new design shown in FIG. 5; and,
FIG. 8 is a perspective view of the second embodiment of our new design as shown in FIG. 5.
The broken line showing of threads on the lamp base in the second embodiment is directed to environment and is for illustrative purposes only. The broken lines form no part of the embodiment in which they are shown.