The ornamental design for a combinedbathtub and shower stall, as shown and described.
FIG. 1 is a perspective view taken from the top, front and left end of a
combined bathtub and shower stall showing my new design, part of the left
end thereof being broken away for convenience of illustration, the right
end being the same as the left end shown;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a cross sectional view along the lines 3--3 of FIG. 2, and