| GENERAL CHARACTERISTICS ITEM DESCRIPTION | PLATE GLASS,31.125 IN. O/A LG,31.0625 IN. O/A W,0.125 IN. THK,14 CONCETRIC CIRCLES SPACED 2 IN. APART,ONE CIRCLE 29.200 IN. DIA,24 RADIAL LINES SPACED 15 DEGREE INTERVALS,RADIAL AND CIRCLE LINES ETCHED OR GROUND 0.009 IN. WIDE AND 0.005 IN. DEEP,2 HOLES 0.250 IN. DIA ON 23.125 IN. C TO C,10 SLOTS ON ONE SIDE 0.187 IN. W AND 0.250 IN. O/A DEEP |