Exterior of a door of a truck cab

FIG. 1 is a left, front perspective view of a left door embodiment of an exterior of a door of a truck cab showing our new design, it may be understood that the broken lines on all figures are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a side view of the embodiment of the invention shown in FIG. 1;

FIG. 3 is a top view of the embodiment of the invention shown in FIG. 1;

FIG. 4 is a front view of the embodiment of the invention shown in FIG. 1;

FIG. 5 is a rear view of the embodiment of the invention shown in FIG. 1;

FIG. 6 is a right, front perspective view of a second embodiment of a right door of an exterior of a door of a truck cab showing our new design;

FIG. 7 is a right side view of the embodiment of the invention shown in FIG. 6;

FIG. 8 is a top view of the embodiment of the invention shown in FIG. 6;

FIG. 9 is a rear view of the embodiment of the invention shown in FIG. 6; and,

FIG. 10 is a front view of the embodiment of the invention shown in FIG. 6.