pebbling

from The Collaborative International Dictionary of English v.0.48

Pebble \Peb"ble\, v. t. [imp. & p. p. {Pebbled}; p. pr. & vb. n.
   {Pebbling}.]
   To grain (leather) so as to produce a surface covered with
   small rounded prominences.
   [1913 Webster]