The manu kake glyphs unquestionably are designed to indicate a Janus position. Such a position means to stand immediately inside the 'door' leading from the old year to the new, cfr January. One head of manu kake is looking back, the other forward. Examples:
Here the two manu kake glyphs in G help us to 'solve' the structure of the two basic years:
Other texts use manu kake glyphs in different ways, but - it seems - always with the idea of such a glyph being positioned inside the 'door' to a new year. This new 'year' is not necessarily defined by the sun, for instance is manu kake in Ab5-17 located at the beginning of the Venus synodic period:
Each day is here represented by two glyphs. |
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