I claim the ornamental design for a standing lamp, as shown and described.
FIG. 1 is a front perspective view of the standing lamp.
FIG. 2 is an enlarged perspective view of the top portion of the standing
lamp of FIG. 1, the bottom being omitted for convenience of illustration;
FIG. 3 is an enlarged elevation view of the bottom portion of the standing
lamp of FIG. 1, the top portion being omitted for convenience of
illustration
FIG. 4 is an enlarged elevation view of the top portion of the standing
lamp, the bottom being omitted for convenience of illustration; and,
FIG. 5 is an enlarged elevation view of the top portion of the standing
lamp, the top being omitted for convenience of illustration.