The ornamental design for a rearcombinationlamp for automobile, as shown and described.
FIG. 1 is a perspective view from the front left side of a rear combination lamp for automobile.
FIG. 2 is a perspective view from the front right side thereof.
FIG. 3 is a front elevation view thereof.
FIG. 4 is a left side elevation view thereof; and,
FIG. 5 is a top plan view thereof.
The portions of the rear combination lamp shown in broken lines are for the purpose of showing environmental structure only and form no part of me claimed design.