It's funny how, even after 30 years of sewing and many of those years realizing that sleeves aren't so hard, I still put off making sleeves because they used to be difficult.
With a fully lined jacket, there are FOUR sleeves! And these are slightly different, in that they have a pleat at the top and a clip on the sides. Halfway between the top of the shoulder and the notch, there is a spot where you sew a retaining line of stitching and then you clip in almost 5/8 of an inch to the small dot. When you split the fabric at the clip, it makes for a square spot on the outside on the finished sleeve.
I haven't pressed this sleeve, nor have I unpicked the basting for the pleat, but you can see where the seam goes square on the front there.
Here's what the back looks like, before the sleeves were put on. So cute with the pleats! And you can see I have marked with white thread, the small dots on the sleeve seam allowance, where they will be clipped for that square spot.
I decided to use the wool yoke in the back for warmth but I also put the lining fabric over it, for a uniform inside, non-stick finish, as well as additional warmth.
Here's the lining all put together. There is no extra band on the inside, like there is on the finished back outside. Now I "just" have to put the outside and the lining together!