Redden v. United States

The merchandise involved in this suit consists of tubular-shaped burners composed of transparent fused quartz made from rock crystal. No sample was filed, but a rough sketch or drawing made by the witness Robinson while testifying appears in the record as an exhibit. This sketch taken with the testimony indicates that each burner consists of a straight tube having two crosspieces, also tubular, on each end. These tubular crosspieces are designed to hold mercury-film phosphorous salts, which are placed therein after importation. As these salts are warmed a mercury vapor is produced, the air is…