Vintage cowboy button (Pearl) up shirt, Size Small

This vintage cowboy shirt was purchased at an LA vintage store with no tags of any kind. Really good condition. I personally have never worn this. Tailored well for females, sinches at the waist. See photo for measurements/ no size was ever listed however I wear a 4/6 and this fits me well. Measurements are approximate: 30 inches in length, 18 inches pit to pit.