7
	Eb3-20	Eb3-21	Eb3-22	Eb3-23	Eb3-24	Eb3-25
12
	Eb4-7	Eb4-8	Eb4-9	Eb4-10	Eb4-11	Eb4-12

The legs in Eb3-25 are not in touch with henua, a feature shared with Eb4-12 in the 12th period. Measuring from Eb3-20 up to and including Eb4-12 we find a quarter (6 half-month periods).

Eb3-21 is a glyph relating the 7th half-month period to Eb6-5 in the 2nd part of the 24th period, and they thereby together define the 1st quarter.