Combined bottle cap and dust cover
FIG. 1 is a top plan view of a combined bottle cap and dust cover showing our new design; 
     FIG. 2 is a front elevation view thereof; 
     FIG. 3 is a side elevation view thereof; 
     FIG. 4 is a bottom plan view thereof; and, 
     FIG. 5 is an enlarged cross-sectional view thereof, taken in the direction of the arrows along line 5--5 of FIG. 2.