1. A binding ornamentation on the spine or covers
of a book, either in gold or blind, consisting of
straight lines that meet but do not pass beyond
the vertical panel or "run-up" lines on either
side. A fillet or pallet may be used to make the
lines; however, the fillet is not generally used
on the spine of a book except when executing the
RUN-UP GILT BACK .
2. The juncture at the corners of the turn-ins
edged to an angle of 45. See: CORNER MITERING ;NICKED CORNER . 3.
The connection at the angles of an outer frame to
an inner frame or panel by the diagonal use of a
fillet or roll. (161 , 183 , 236 , 335 )