Modular display unit
FIG. 1 is a perspective view of a modular display unit showing my new design; 
     FIG. 2 is a left end elevational view thereof; 
     FIG. 3 is a top plan view thereof; 
     FIG. 4 is a front elevational view thereof; 
     FIG. 5 is a front elevational view, the showing of matter in broken lines is for illustrative purposes only; 
     FIG. 6 is perspective view of a modified form of the modular display unit shown in FIG. 1; 
     FIG. 7 is a left side elevational view thereof; 
     FIG. 8 is a top plan view thereof; 
     FIG. 9 is a front elevational view thereof; and 
     FIG. 10 is a front elevational view, the showing of matter in broken lines is for illustrative purposes only.