The ornamental design for a decal for an automobile, as shown and described.
The patent or application file contains at least one drawing executed in color. Copies of this patent with color drawings will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a plan view for a decal for an automobile showing a first embodiment of my design against a black background; and,
FIG. 2 is a plan view for a decal for an automobile showing a second embodiment thereof.
In the drawings, the colors red and black are part of the claimed design. The dash-dot lines define the bounds of the claim and do not form a part of the claimed design.