Ea1-24	Ea1-25	Ea1-26	Ea1-27

The 'staffs' in Ea1-25--27 are three. We need three more signs to reach 6. Here Ea1-24 gives us a clue: The left hand held high with fingers towards the head is equivalent to a 'staff'. We find three such in Ea1-25 -- 27 and therefore there are 6 kokore-nights in period no. 3.

Note that the left hand held high in Ea1-24 corresponds to 'staffs' in the other glyphs located at the start of a period, e.g. in period no. 4:

Period no. 6

Ea2-25	Ea2-26	Ea2-27	Ea2-28

The 'staffs' in Ea2-25--28 are four. We need one more. I guess that one is found in Ea2-25, inverted.