Just a quick update on this gown I've been procrastinating on.

American Duchess Historic Shoes Blog

I cut it out, there's a start, and pinned up the en fourreau back pleating, using pgs 49 - 50 in Costume in Detail: Women's Dress 1730-1930American Duchess Historic Shoes Blog as a guide.

American Duchess Historic Shoes Blog
Image from Costume in Detail, page 49

American Duchess Historic Shoes Blog
Image from Costume in Detail, page 50
The next step is to hand stitch all of this down to its cotton lining, using a running top stitch. Whether it's 9 stitches per inch, or more of the tacking stitch you often see with en fourreau backs, I have no decided yet.

I also tried the front and side back pieces combined, with no extra side seam. With this method, you smooth the piece around to the back, turn under the raw edge, and top stitch it along the curved side back seam with a back stitch (by hand, of course). I'm nervous about losing the control in fitting a side seam gives, but I want to at least try to try to historical methods, and the Williamsburg polonaise seen in Costume Close Up: Clothing Construction and Pattern, 1750-1790American Duchess Historic Shoes Blog uses this method.

American Duchess Historic Shoes Blog
Lots of pins, to see how things will lay and look. Next is to sew all this stuff for real-real.
American Duchess Historic Shoes Blog
Front looks nice and smooth, just pinned into position. The strap will be handy in adjusting to length of waist, too.
Again, all pinned so it looks rumpled, but off to hand sew for the evening I go!
American Duchess