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VMs: Tracing...?

Hi everyone,

Looking at the star charts again reminded me that Sergio Toresella told me that, when he examined the VMS, he considered that many of the diagrammatic circles were definitely *not* drawn mechanically, but were instead *traced*.

How might tracing have been achieved in the 15th Century? Is the parchment of the VMS so thin as to make this possible simply by placing it over an existing document and (under a bright light) copying the lines? Might this have been the primary reason for preferring parchment to paper?

Certainly, this looks like quite a nice SCA exercise to try out. :-)

These are just random thoughts, of course - please feel free to assert/refute them as you wish. :-)

Cheers, .....Nick Pelling.....

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