Hi, I'm wondering how the Officers sew-in shoulder boards were actually attached to the tunic?, I know the end was tucked under a slit at the top of the sleeve, was this then sewn in?. I'm asking because, being a re-enactor, I want to add shoulder boards to a tunic and am worried about the silver cords separating, which would ruin the boards. I'd appreciate any help, as the lady doing the sewing, is scratching her head, as am I.