L.L. Collezioni Italia Cashmere Coat in Camel Color

Beautiful cashmere long coat by L.L. Collezioni Italia. Coat is 100% cashmere, lining is 100% acetate. Has 3-button closure in front and it has side slit pockets. FLAT measurements are: approx 47" Long, sleeves are approx 24 1/2" long, and armpit to armpit approx 19" across. I purchased new and wore it probably less than a dozen times. There is a small stain on the lining at the upper back area as you can see in the photo. I'm not sure what it is, I tried to remove it with some dry cleaning fluid but it didn't come off. A dry cleaner might be able to remove it. The outside of the coat has no stains or rips, it's in excellent condition.