To be honest, I was not expecting to see the origin of sun and moon faces in alchemical manuscripts, because, indeed, there are only few illustrated alchemical manuscripts from the early 15th century.
The oldest surviving copy of the Buch der Hlg. Dreifaltigkeit is, to the best of my knowledge London, Wellcome WMS 164, of which I can't remember a complete digital copy. However, it has been mentioned in this forum several times already.
A more likely source seems to be wood cuts used for early copies of Dante's Divina Commedia.
From Edith Sherwood:
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also already discussed by Nick Pelling:
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The oldest surviving copy of the Buch der Hlg. Dreifaltigkeit is, to the best of my knowledge London, Wellcome WMS 164, of which I can't remember a complete digital copy. However, it has been mentioned in this forum several times already.
A more likely source seems to be wood cuts used for early copies of Dante's Divina Commedia.
From Edith Sherwood:
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also already discussed by Nick Pelling:
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