Prada pleated skirt

I bought this Prada skirt in Italy years ago & it has been hanging in my closet for most of that time. This skirt is in great condition except for the stain on the back. Please see photo. The blemishes are approx 1” x 1” & one of them is minor. I haven’t taken it to a professional dry cleaner, so they may be able to remove. Fully lined and has a side zip and is probably made of silk taffeta. No care/material tag. Bronze/olive/brown color. Beautiful & versatile. Prada size 40 = US 6 Approx dims: 14” at waist when laid flat, 21” long All reasonable offers considered