FIG. 1 is a side elevational view of a bar code scanning device showing my new design, the opposite side being a mirror image;

FIG. 2 is a left end elevational view thereof on an enlarged scale;

FIG. 3 is a right end elevational view thereof on an _enlarged scale; and

FIG. 4 is a left end elevational view of a second embodiment of my new design, the second embodiment being identical to the first except for the use of transparent imperforate end caps in lieu of the opaque end caps shown in FIGS. 2 and 3.