G311331322,BICONVEX LENS; N-SK 2; D=31.5; F
G311331329,BICONVEX LENS; N-SK 2; D=31.5; F
G311331525,BICONVEX LENS; N-SK 2; D=31.5; F
G311335000,BICONVEX LENS; N-BK 7; D=31.5; F
G311335322,BICONVEX LENS; N-BK 7; D=31.5; F
G311335329,BICONVEX LENS; N-BK 7; D=31.5; F
G311335525,BICONVEX LENS; N-BK 7; D=31.5; F
G311338000,BICONVEXL.; N-BK 7; D=22.4; F=20
