Precious metals and their alloys and goods in precious metals or coated therewith, not including in other classes, namely ingots of precious metals, jewelry, rings, earrings, cufflinks, medals, medallions, brooches, bracelets, chains, necklaces, tie pins, pins, precious stones, diamonds, pearls, horological and chronometric instruments, watch chains, dials, pendulums, clock cases, watch-cases, watch-bracelets, wrist-bracelets, movements for clocks and watches, chronographs, chronometers, watch springs, works of art of precious metal, jewel cases of precious metal, cases for watches, cases for clock and watchmaking, cigar holders, boxes and cases of precious metal, cigarette holders and cases of precious metal, key rings