Section 18 OPTICAL, PHOTOGRAPHIC, CINEMATOGRAPHIC, MEASURING, CHECKING, PRECISION, MEDICAL OR SURGICAL INSTRUMENTS AND APPARATUS; CLOCKS AND WATCHES; MUSICAL INSTRUMENTS; PARTS AND ACCESSORIES THEREOF 90 OPTICAL, PHOTOGRAGHIC, CINEMATOGRAPHIC, MEASURING, CHECKING, PRECISION, MEDICAL OR SURGICAL INSTRUMENTS AND APPARATUS; CLOCKS AND WATCHES; MUSICAL INSTRUMENTS; PARTS AND ACCESSORIES THEREOF 90 02 OTHER THAN SUCH ELEMENTS OF GLASS NOT OPTICALLY WORKED,. 90 02 90 OTHER LENSES.. FOR PHOTOGRAPHIC/CINEMATOGRAPHIC APPARATUS INCL. PROJECTORS Commodity Code Description 90 02 90 10 OTHER LENSES.. FOR PHOTOGRAPHIC/CINEMATOGRAPHIC APPARATUS INCL. PROJECTORS 90 02 90 90 OTH.LENSES, PRISMS, MIRRORS & OTH. OPTICAL ELEMENTS, OF ANY MAT., MOUNTED