I haven’t really put as much time into the Rohonc Codex as I would like: but in my defence, this has been because the available scans are fairly miserable. For example, here’s the scan of the drawing on the page marked ’83’:-
However, a recent post from the Centre for the Study of Manuscript Cultures (‘CSMC’) at the University of Hamburg offers us a glimpse of what might be possible with better quality Rohonc scans. (This whole story was broken by Klaus Schmeh’s Krypto Kolumne a few days ago, well done Klaus!)
With this scan, you can clearly make out that this drawing is depicting some kind of curious clockwork device, though – as cipher mysteries connoisseurs would perhaps expect – it’s still as clear as mud what is going on with it.
If only the rest of the Rohonc Codex could be scanned in broadly the same quality, and a proper codicological description of its construction put together! Then we could all really go to town on it, not just Benedek Lang. 🙂