Scribes at different periods used a
different number of styluses. Most cuneiform
signs could be written with a single
stylus, and by the Ur III period and
later there was no need for more than
one.
At different periods, the styluses would
have had slightly different shapes.
On earlier tablets, and possibly on
some tablets of Sargonic date as well,
one encounters round numbers which are
written with different sizes of round
stylus; a small one might represent
60, for example, and a larger one 3600.
