This includes:  production of worked pearls  production of precious and semi-precious stones in the worked state, including the working of industrial quality stones and synthetic or reconstructed precious or semi- precious stones  working of diamonds  manufacture of jewellery of precious metal or of base metals clad with precious metals, or precious or semi-precious stones, or of combinations of precious metal and precious or semi-precious stones or of other materials  manufacture of goldsmiths’ articles of precious metals or of base metals clad with precious metals:  dinnerware, flatware, hollowware, toilet articles, office or desk articles, articles for religious use etc.  manufacture of technical or laboratory articles of precious metal (except instruments and parts thereof): crucibles, spatulas, electroplating anodes etc.  manufacture of precious metal watch bands, wristbands, watch straps and cigarette cases  manufacture of coins, including coins for use as legal tender, whether or not of precious metal  engraving of personal precious and non-precious metal products