wow!! thank you for posting this question! my next quilt project is for some "period" quilts. I want to try one or two early 1800's-ish. I am not trying to be perfectly time period, but just general.
I am going to have to check up on the knife edge binding.
as far as batting I was leaning towards Hobb's 80/20 because I have seen that cause some "crinkling" on quilts.
I read that the Hobbs 80/20 shrunk just a little and that batting shrinkage is what caused the "crinkle". But I would have to agree that back in the day the batting was whatever they had on hand or could easily get their hands on to use for the batting
I will be watching this post... hope to learn more before I start my projects in the next couple of weeks
