The ornamental design for a globe for a warninglamp, as shown and described.
FIG. 1 is a front elevational view of a globe for a warning lamp of my new design, the rear elevational view, the right side elevational view and the left side elevational view being a mirror image of the front elevational view;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a cross-sectional view taken along the lines 4-4 in FIG. 2;
FIG. 5 is a cross-sectional view taken along the lines 5-5 in FIG. 1;
FIG. 6 is a perspective view taken from the front, top and left side thereof;
FIG. 7 is a perspective view taken from the rear, bottom and right side thereof; and,
FIG. 8 is a reference illustration of the globe with the translucent portion indicated by inclined lines.