… or corrective spectacles, curved, bent, hollowed or the like, not optically worked; hollow glass spheres and their …
Explanatory notes
… or corrective spectacles, curved, bent, hollowed or the like, not optically worked; hollow glass spheres and their … heading covers : (A) Glass, curved, bent, hollowed or the like, of any shape or size, with or without parallel faces, … includes all similar glasses for photograph frames and the like, medallions, hygrometers, barometers and similar …