Unique Reversible Jacket

Not Sure How To Describe This Jacket. I Got In Japan Many Years Ago. I Can Only Assume It Is Silk And It Is Reversible. It Is A Beautiful Teal Color On One Side And A Cream White On The Other. I Would Say It Is A Small As Far As Size As That Is What I Wore Way Back Then! There Have Never Been Tags On This Because It's Reversable. Note That There Is A Small Spot On The Left Pocket Of The Cream Side Of The Jacket. It Is Barely Noticeable But You May Know A Way To Clean It Up. Personally I Loved The Teal Side Out To Wear With Black Clothing Underneath.