Voynichese's letters

[RobGea]

My question is, is there a possibility that the cipher of the manuscript is based on numbers (in particular, Roman ones)?

Yes, it is possible, i see no reason why voynichese could not be based on numbers.

The resemblance of EVA-'iiin' and family to the Roman Numerals II, III, IIV, etc, have oft  been remarked upon but idk of any deep attempts to link the two.   

My light play with the idea
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Roman numerals to Voynicheesy

post by ReneZ about his mod2 cipher system but the links in that post are dead.
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A short post by Elmar Vogt about Cistercian numerals
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J.K.Petersens blog "Voynich portal" has a couple of posts about the similarites between voynichese and Greek and Roman numerals.
/a-helping-hand/  and  /running-the-numbers/
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