Sewing technology. Slanted welt pocket with stitched corners

Mark the pocket entrance. Reinforce it with fusible on the wrong side, go beyond the pocket frame at 1 cm.

Iron the fusible on the welt, press it in half. 

Place the welt and the lining of the underlay piece onto the pocket frame, strictly on frame lines, stitch leaving the seam allowances on the sides.

Stitch the other lining.

Cut the pocket entrance. Stop at 1 mm at the corners.

Turn the pocket to the other side.

Straighten the welt and the pocket.

Stitch the corners with the welt and the lining.

Stitch the linings together, finish the edges on the serger.