The ornamental design for a headlamp for an automobile, as shown and described.
FIG. 1 is an outside elevational view of a headlamp for an automobile in accordance with a first embodiment of our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a front side elevational view thereof; and,
FIG. 5 is a front side perspective view thereof.
The broken lines and the half-tone gray area within the broken lines shown in the drawings represent portions of the headlamp for automobile that form no part of the claimed design.
A second embodiment of my new design includes the mirror image of the headlamp shown in FIGS. 1 to 5.