Section 18 OPTICAL, PHOTOGRAPHIC, CINEMATOGRAPHIC, MEASURING, CHECKING, PRECISION , MEDICAL OR SURGICAL INSTRUMENTS AND APPARATUS; CLOCKS AND WATCHES; M USICAL INSTRUMENTS; PARTS AND ACCESSORIES THEREOF 90 Optical, photographic, cinematographic measuring, checking, precision, medical o 90 14 Direction finding compasses; other navigational instruments and appliances. 90 14 10 - Direction finding compasses 90 14 10 00 - Direction finding compasses Commodity Code Description 90 14 10 00 00 - Direction finding compasses 90 14 20 00 00 Instruments and appliances for aeronautical or space navigation (other than compass 90 14 80 00 00 Other instruments and appliances 90 14 90 00 00 Parts and accessories