Explanatory notes
… Thus, piano‑key plates and plates for insertion in butts of firearms fall in headings 92.09 and 93.05 respectively. … agglomerated coral. (VI) Mother‑of‑pearl, the lustrous, iridescent nacreous lining of certain shells; its surface … Note to heading 96.06 ) and Jerusalem pearls, (i.e., irregular mother‑of‑pearl beads, simply pierced, but not …