The Collaborative International Dictionary of English v.0.48:

Celature \Cel"a*ture\, n. [L. caelatura, fr. caelare to engrave
   in relief.]
   1. The act or art of engraving or embossing.
      [1913 Webster]

   2. That which is engraved. [Obs.] --Hakewill.
      [1913 Webster]