Explanatory notes
… balls, metal caps, screw caps (of metal or plastics), or special devices (e.g., for beer bottles, bottles for aerated … they are ground, cut, sand-blasted, etched or engraved, or decorated (this applies, in particular, to certain perfume … metal, etc.); they may also have tumbler-caps fitted to the neck. They may be fitted with drop measuring devices or may …