Also look at German Renaissance. There are multiple high-necked options, one of which is sometimes called a goller. It is a black woolen partlet worn over the gown rather than under. This link might be to a picture of one. http://upload.wikimedia.org/wikipedia/commons/a/ae/Marten_van_Heemskerck_002.jpg
There is a lot going on with that dress, and it's hard to see because it's black, but I'm pretty sure that is a gooler. I can't find a better link at the moment.
You could also do an Elizabethan doublet bodice, which has a high neck. And also and Elizabathan kirtle, which is a high-necked overgown, I can't find links to good pics for either.
--- In SCA-Garb@yahoogroups.com, Carol Botteron <botteron@...> wrote:
> Because of an old injury I need to keep the back of my neck warm even
> in warm weather. In modern clothing I wear turtlenecks or scarves.
> I want to make either a bodice with a high neck (as high as a modern
> turtleneck) or headgear that covers my neck well enough to keep it
> warm. The coifs I have seen do not look warm enough, even for a warm
> room. A shawl does not do the job.
> Advice and example pictures would be appreciated. I'm open to any
> era or area, and I can sew. adTHANKSvance!