Writing instrument
FIG. 1 is a left-side elevational view of a writing instrument showing my new design; 
     FIG. 2 is a rear elevational view thereof; 
     FIG. 3 is a front elevational view thereof; 
     FIG. 4 is a right-side elevational view thereof; 
     FIG. 5 is a bottom plan view thereof, on an enlarged scale; 
     FIG. 6 is a top plan view thereof, on an enlarged scale; 
     FIG. 7 is a top, front perspective view; 
     FIG. 8 is a top, rear perspective view; and, 
     FIG. 9 is a sectional view, on an enlarged scale, taken along the line 9--9 of FIG. 1 and looking in the direction of the arrows.