Authentic Vintage Chinese Satin Mandarin collar fully lined Possibly reversible

Purchased in San Francisco China Town 1979; Made in Shanghai one owner carefully stored in non smoking home ever since. Worn once. No odors. Brand PANSY. Fabric appears to be satin. No identifying description. Interior lining solid red of same type fabric. Sleeves are also fully lined. Photos of 2 teeny,tiny tears in interior. Otherwise EXCELLENT CONDITION.