Vintage 1970s authentic handmade disco black & white babydoll long-sleeved top

This piece is truly amazing! It's a 1970s tailored piece that's black with a super flattering white underbust band & white sleeves. I bought it at a vintage store, but I just haven't had the right occasion to wear it. It's an approximate size small, and here are the measurements: Chest: 33″ Underbust: 29″ Sleeve length: 17″ Total length: 28″