| GENERAL CHARACTERISTICS ITEM DESCRIPTION | 4 IN. DIA,7.8 IN. H; 6.7 IN. H SURFACE TO MIRROR CENTER; PLANE PARALLEL; MATL PYREX; MIRROR 1.5 IN. L,1.5 IN. W,0.5 IN. THK; ALUMINIZED; FLATNESS 1/10 WAVE PLANE PARALLEL 1 SEC ARC; KNIFE EDGE,PAD TUNGSTEN CARBIDE; OIL DOW CORNING NO. 200 FLUID VISCOSITY GRADE 10000 CS; HARDWOOD CARRYING CASE |