Magus's Grimoire [Abridged]

For the years I've been involved in re-enactment of the English Regency, I have been frustrated by the absolute dearth of information on what seems to be one of the defining features of Regency menswear: the cravat. Given this problem, I've taken it upon myself to do some research on the topic, with limited success. I'd like to put together a good resource so men getting into Regency reenactment have somewhere to turn to learn more about neckwear, but I'm not yet satisfied with the quality of the information I have.

I have a lot of historian-type friends, and I think it's time to turn to you all for help. If anybody can provide any of the following, I would appreciate it greatly:

• Access to or measurements of primary sources [material, thickness, and particularly dimensions of existing neckcloths in archives, preferably with information on when, where, and in what context they were worn]

• Leads to non-satirical contemporary secondary sources describing details of the construction of neckcloths and their manner of tying. White/Le Blanc's "The Art of Tying the Cravat" is useful, but a work of satire, and thus teasing out what's exaggerated is tricky. The popular-on-the-web "Neckclothitania" is a parody of that.

• Links to any treatment of the subject I may have missed thus far. I seem to get a lot of fashion plates and portraits and the like, which are great, but rarely any instructions, let alone instructions with accompanying documentation.

Note that at present I'm looking for about two generations worth of the beginning of the 19th century; if I get enough information to distill it into an instructional form I'll be careful to be clear about likely dates for things. I'd be happy to have sources outside the target date range as well, as I might eventually branch out depending on how this goes.