The ornamental design for an adjustabletable for attachment to an automobiletailgate, as shown and described.
FIG. 1 is a perspective view of an adjustable table for attachment to an
automobile tailgate showing my new design, with the unitary leg in open
position for use;
FIG. 2 is a bottom plan view with the single leg folded and retracted.
FIG. 3 is a side elevational view on a reduced scale, the opposite side
being a mirror image thereof.