Mamari tablet lunar calendar revisited

This is a post for anyone who is already familiar with Rapa Nui's old writing system, the so-called Rongo Rongo, which still goes on undeciphered.

One day I was reading Jacques Guy's innovative analysis of one of the best understood sections of Rongo Rongo in the Manari tablet, which is regarded to be a some sort of a "lunar calendar". Guy's analyses is here. Following Guy's work, the more I was trying to make sense of the glyph sequences myself, the more I was feeling that the details did not quite add up. Guy was using Barthel's tracings from the 1950s to analyse the contents of the tablet. So, I compared Barthel's glyphs to a photograph of the original tablet.

Closer examination of the photograph quickly revealed, that Barthel reproduced the glyphs quite carelessly, frequently resorting to over-interpreting and over-harmonising the glyphs, adding and removing elements so that the final tracings could only be used to give a general idea of the writing, with little to no use for detailed examination. This was especially surprising regarding the amount of work different scholars have invested in using his tracings in their futile attempts to make some sense of the tablets.

This gave me an idea to use the original photograph as the basis to revisit the Manari tablet's lunar calendar and see if some new ideas could be introduced once we are pass Barthel's work.

For better visibility of the glyphs, the tablet photograph's colours were first inverted. Then the contrast and brightness were manipulated to bring the glyphs clearly up front. Slight manual removal of remaining noise was performed as well. The reverse boustrophedon reading order was removed and glyphs organised left to right, top to bottom.

Since we are now interested in the "lunar calendar" part of the tablet, I next removed other content and left only the 88 glyphs of the calendar.

In order to further present the contents better, the moon crescents were grouped into 8 sections, each with at least one or more right facing crescents, headed by a set of preceding "heraldic" glyphs. Each separate glyph was numbered from 1 to 88.

Now, the resulting image for the "lunar calendar" appears like this (click the image to make it bigger):

Let's have here similarly organised Barthel's tracings so that similarities and differences are clearly comparable:

What do you think? I have some ideas to further analyse the lunar calendar, once its original glyphs are now readily available.