blacking the squares
The process of coloring the edges and squares of
the boards of a book, as well as the headcaps,
with a black pigment, such as vinegar-black mixed
with gum arabic, so as to enhance the effect of
tooling in blind. The technique is uncommon today.
(152 , 241 )
![[CoOL]](/icons/sm_cool.gif){kind=icon}