I wrote this post a number of years back, and it is in the forefront of my mind because I'm working on a trench coat right now, so while the Thanksgiving turkey cooks, here it is again for your sewing pleasure...
Buttonholes are all machine-worked keyhole style.
The breast flap buttonhole is positioned at a 45-degree angle.
Buckles on the belt and the sleeves are leather-covered. In some models they are metal to match the buttons. The sleeves are three-piece raglan sleeves. Burberry also makes styles with 2-piece set-in sleeves. Sleeves are topstitched along the upper arm seam.
The body of the jacket is lined with the classic Burberry plaid. Note the careful placement of the plaid along the princess seams.
Hopefully that gives you some insight into the construction of a classic trench coat. Have fun and happy sewing!
Ann
December 1, 2019 ETA: Coincidentally, The Cutting Class did a post yesterday highlighting details of current-season Burberry coats. I have to wonder if they were "inspired" by my little post 😂