"7IRREGULAR SHAPE,SIDE WITH GRADUATED SCALE ISSTRAIGHT WITH BEVELED EDGE,38.190 IN. LG O/A,37.7952 IN. EQUAL 24SPACES,NUMBERED 0 THROUGH 23,1 DIVISION 1.5748 IN. LG EQUALS 40 SPACES,NUMBERED 1 THROUGH 10,NUMBERS ENGRAVED AND FILLED WITH WHITE FINISH"