An ornamentaldesign for a combined display and tanker vehicle, as shown and described.
FIG. 1 is a back perspective view of my new design of a combined display and tanker vehicle;
FIG. 2 is a side view of the design of FIG. 1; and,
FIG. 3 is a back view of the design of FIG. 1.
The broken lines showing elements of the display on a vehicle in the above described figures are for illustrative purposes only and form no part of the claimed design.