Mica covered books part 2

We did have some sheets of stabilized mica that split.  The thinner mica was too fragile to use as book covers without additional support.  To support the mica I attached the sheets to a 1/8" inch larger leather cover using mini brass brads.  I used a Japanese punch to create the holes through the mica and leather for the brads.  A small brad with a ring was attached to the back cover of the book, and a twined thread and a small hollow brass ball on the end was used as the closure.  Below are two completed leather books with thin mica front plates.