G311357329,BICONVEX LENS; N-BK 7; D=31.5; F
G311357525,BICONVEX LENS; N-BK 7; D=31.5; F
G311377000,BICONVEXL.; N-BK 7; D=12.5; F=12
G311377322,BICONVEX LENS; N-BK 7; D=12.5; F
G311377329,BICONVEX LENS; N-BK 7; D=12.5; F
G311377525,BICONVEX LENS; N-BK 7; D=12.5; F
G311378000,BICONVEX LENS; N-BK 7; D=18; F=1
G311378322,BICONVEX LENS; N-BK 7; D=18; F=1
