Another possible way to look at the folios 67r1 & 2 could come from a Solar Event like an eclipse.  What was interesting is the South Node lines up with the dots from 67r2 from the solar fire image.

I went over the charts for Solar Eclipses from 1404-1438 and compared them to 67r2, but this one was special for 1431.   The possibility of finding a date for the document is remote at best using this method.  However I find it striking.

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The eclipse takes place in the evening in the sign of Aquarius; yet out of the charts, Aquarius is missing in the Voynich Manuscript with Taurus listed twice.

Also the following image on 67v1 shows the 2 suns that are have gone into flowers, just a thought.