zinc-coveredhttp://www.oed.com/dictionary/zinc-covered_adj%3Ftab%3Dmeaning_and_usezinc-covered, adj.
First published 1921; not fully revised

zinc-coveredadjective

  1. 1890–
    1. 1890
      A very seedy-looking individual..was leaning with his elbows upon the zinc-covered counter.
      A. Conan Doyle, Firm of Girdlestone xxx. 238

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

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