… not printed or backed with paper, paperboard, plastics or similar backing materials) of a thickness (excluding any …
Explanatory notes
… not printed or backed with paper, paperboard, plastics or similar backing materials), of a thickness (excluding any … 0.15 mm in thickness). The thinnest foils, used for imitation gilding, etc., are very flimsy; they are generally … coated (gilded, silvered, varnished, etc.), or printed. The limiting thickness of 0.15 mm includes coatings of varnish, …