In your opinion, did the writing of the VM start closer to 1412 or closer to 1440?

[Mark Knowles]

In fact the Diebold Lauber drawings which are most similar to the Voynich are

Diebold Lauber keeps coming up here, but I fail to see how the crude scribblings in the Voynich MS can have anything to do with such a professional setup and artistic workshop.

I daresay you will say that I am making the facts fit the theory, however I will tell you what I think anyway.

I think those astrological drawings/illustrations in the Voynich look like very crude copies of the professional Diebold Lauber illustrations. That is what they look like to me. I suspect the author of the Voynich wasn't overly concerned about making those illustrations look professional as his/their interest was the contents of the astrological diagram. The astrological diagram may be an attempt to make a copy of astrological diagrams from a Diebold Lauber manuscript or the author(s) may have merely copied the astrological illustrations. In short the similarity is so striking to the Diebold Lauber illustrations that they appear to me as being (very) bad copies of the Diebold Lauber Zodiac illustrations.