Combination set protractor
FIG. 1 is front elevational view of a combination set protractor showing our new design; 
     FIG. 2 is a rear elevational view thereof; 
     FIG. 3 is a top plan view thereof; 
     FIG. 4 is a bottom plan view thereof; 
     FIG. 5 is a left side elevational view thereof; 
     FIG. 6 is a right side elevational view thereof; 
     FIG. 7 is a front elevational view thereof showing the protractor in an alternative position.