When specifying my guitar build I had asked Steve Benford for “something like a 1959-60 Les Paul”. If I’d have thought more carefully about it I’d have realised that, as hand-made instruments, they all varied, and there was no standard dimension or shape, other than a broad similarity. Steve pointed me to this thread on the Les Paul forum.
To help me sort it out, I transcribed all of the neck dimension information into a spreadsheet, which you’re welcome to use, if it is of any interest for you.
You can see it at Google Docs.