G311027525,BICONVEX LENS; FUSED SILICA; D=2
G311202000,BICONVEX LENS; FUSED SILICA; D=6
G311202322,BICONVEX LENS; FUSED SILICA; D=6
G311202329,BICONVEX LENS; FUSED SILICA; D=6
G311202525,BICONVEX LENS; FUSED SILICA; D=6
G311203000,BICONVEXL.; FUSED SILICA; D=10;
G311203322,BICONVEX LENS; FUSED SILICA; D=1
G311203329,BICONVEX LENS; FUSED SILICA; D=1
