G052403525,BICONCAVE LENS; N-BK 7; D=12.7;
G052404000,BICONCAVL.; N-BK 7; D=12.7; F=-1
G052404322,BICONCAVE LENS; N-BK 7; D=12.7;
G052404329,BICONCAVE LENS; N-BK 7; D=12.7;
G052404525,BICONCAVE LENS; N-BK 7; D=12.7;
G052501000,NEUTRAL FILTER; T=50%; D=12.7; M
G052502000,NEUTRAL FILTER; T=20%; D=12.7; M
G052503000,NEUTRAL FILTER; T=10%; D=12.7; M
