zinc-sheethttp://www.oed.com/dictionary/zinc-sheet_n%3Ftab%3Dmeaning_and_usezinc sheet, n.
First published 1921; not fully revised

zinc sheetnoun

  1. 1905–
    1. 1905
      Zinc sheets quiet at late rates.
      Times 6 July 14/6

Originally published as part of the entry for zinc, n.

zinc, n. was first published in 1921; not fully revised.