MidCentury Modern Decorating Fabric HUGE!

Beautiful MCM fabric, approximately 4’ wide and 10-11’ long. Great to make pillow covers, chaise cover, etc. In excellent condition, with the exception of one area I found, seems discolored and I did not try to clean. See pic. I am not positive what type of fabric it is, but it gives the appearance of raw silk with the little lines through it, but it is not raw silk. May be a polyester cotton blend? It has a nice midweight feel.