society > communication > writing > writing materials > material to write on > writing tablet > [noun] > set of (3)
(originally) a set of writing tablets (now historical); (now U.S.) a writing pad.
Anything folded, so as to have two leaves; esp. a two-leaved, hinged tablet of metal, ivory or wood, having its inner surfaces covered with wax…
Ancient History. A set of three writing-tablets hinged or tied together.