No text, but a visual code

[-JKP-]

I think I've found the origin of two symbols of the Voynich script in some volvelles from the same time of the VMS, what reinforces the hypothesis of an astronomical code.
  Is about the symbols EVA-d and EVA-l. They are actually numbers as their shape indicates. The number 8 and the number 4 in its primitive Arabic form. You can see these numbers in at least three wheel charts on the following digitalized manuscripts:
   MS Asmole 370 The Kalendarium of Nicholas of Lynn
   MS 454 Lambeth Palace Library (looking for volvelle hashtag on Twitter)
   BL Sloane 4100, recto

 In all three volvelles, the numbers 8 and 4 appear in the inner circle, up and down, four times, separated by a cross in the Zodiac signs Geminis-Cancer on the one hand and Sagitarius-Capricornius for the other. The numbers obviously are the hours of ligth: 8 plus 8 in the day of Summer signs versus 4 plus 4 at night, and 4 plus 4 in the day of Winter signs versus 8 plus 8 during the night.
   In Aries and Libra you can see 6 plus 6 because there are the same hours of light in day and night.

I think the Voynich uses only the symbols 8 and 4 and no the others (5, 6 and 7) because they aren't necessary. Once fixed the tropical signs (Cancer and Capricornius) you can place the celestial objects. What matters in the Voynich it's not the hours of light but the position of the stars in the sphere.

Antonio, I don't know if you've seen them, but I have written several blogs on the Voynichese shapes that are of Indic-Arabic origin (including EVA-d and EVA-l).

I'm not sure I agree with your interpretation of their meaning, but I've been saying for years that some of the Voynich glyphs are probably based on number shapes and have posted many pictures of them. You can find a couple of the blogs here:

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The earlier one also talks about how syllabification (the intrinsic inclusion of the vowel sound in the character) was common to Indic scripts and Latin scribal conventions. Modern viewers usually don't realize that the same ways of using abbreviations and ligatures were somewhat common to both scripts because, over time, we have basically lost the Latin scribal conventions. Indic script still uses these concepts.