in Small Santiago, starting by calculating how many glyphs there are to the left and to the right. There might be more to these two glyphs than information about there being 6 months in each half year.

I have made a table to show how many glyphs there are in the Small Santiago calendar, and this table also shows how they are spread out over the year.

At the same time I have noted down (with red at the left in the table) how many 'feathers' there are in the glyphs of this type:

I regard this example, glyph no. 8 (in the first period), as having 6 'feathers'. Though possibly we should regard the number as 12 instead. If it shows 6, then it could mean 6 months or it could mean 6 double-months. But it could also mean something else. It is certainly not meaningless.