The ornamental design for a sun bathing tub, as shown and described.
Description:
FIG. 1 is a top perspective view of a sun bathing tub showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a side elevational view thereof, the opposite side being the same as the side shown;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is an end elevational view thereof, the opposite end being the same as the end shown; and
FIG. 6 is a cross-sectional view taken on line 6--6 of FIG. 2. The broken line representation of a person in FIG. 1 is for purposes of illustration only and forms no part of the claimed design.
