Vintage MCM Curtains 2 Long Panels Atomic 1950s Fiberglass (?). I'm not sure what you call the fabric, but it's definitely not barkcloth. These look pretty good from the front, but there are areas of fraying on the inside edges and one panel has an 8" long x 1/2" wide area of slight fraying on the front. There's a small area of light discoloration (hard to see) and one snag. Pics included of all flaws. The lining is in good condition. Each panel measures 36"w x 79 1/2"h.