Straightedge
FIG. 1 is a top plan view of a straightedge showing my new design; the bottom being identical; 
     FIG. 2 is a front edge elevational view thereof, the opposite edge being identical therewith when inverted; 
     FIG. 3 is a left end elevational view thereof; 
     FIG. 4 is a right end elevational view thereof. 
     The side opposite that shown in FIG. 2 is identical therewith.