Vintage details: A curvy trim

I am loving these unusual details on this dress from Violetville Vintage. It trims the pockets and back of the dress just perfectly. Even though the dress is a quintessential 50s style, to me the trim could also read deco on a different garment.

This looks to me like it’s probably done with strips of bias tape sewn together. In fact, if you look very very closely at the last detail shot, you can see that the grainline is diagonal. Just add a little cutout to your pocket and this would be pretty easy to replicate!