Plan the back standard to be smaller than the front instead of the same
size. Plate XIX suggests a suitable trapezoidal shape. In this case
the vellum must be of the same length as before, but cut to fit the
different widths of the newsboard (compare Plate XX).
Plan a narrow strip of vellum to line the hinge, as in A. Paste this
piece and the outside covering as before. Cut the lining paper of the
correct shapes and apply to the back.
[Illustration: PLATE XIX. The foundation pieces for an easel mount.]