I shall preface this post with the disclaimer that the jacket is Not-Done-Yet and is still in want of trim. That said, I've worn it twice now to two different gatherings, and wanted to document its existence.
The jacket is made of a pink cotton homespun, lined with a natural medium-weight linen. This was one of those situations where I had both fabrics in my stash and really didn't want to spend extra money... Also, I'm trying very hard to move away from blue in my costuming, as about 2/3's of my historical wardrobe is in the blue family. Not sure how successful I'll be in the long run, as I still adore blue (and it never fails to look good on me).
Like the majority of my historical clothes, the interior seams are all done by machine, but everything visible is hand-work.
The fullness of the skirts is achieved with five inverted box pleats, one at each seam, which are whipped to the lining for stability.
The pattern is very loosely based off the robe à l'anglaise in Jean Hunnisett's book. I say "very loosely" as I looked at it for general sizing, and drew what I thought would work. Fortunately, it did. I didn't bother drafting a sleeve pattern though, and just adapted one of Nicole's personal sleeve bases.
I'll probably write more about research and general info once I really truly finish it, and can post pictures of it in all its trimmed glory.