gold rayon 'silk' shantung curtain panels, 60s mad men vintage curtains

Elegant gold 'silk' shantung fabric curtain panels, actually rayon or an early polyester? The fabric looks very good without staining, fading or holes.

There are two unlined pinch pleated panels (one pair) 47" across the pinch pleats, 83" wide at the hem. These are 63" long.

They're nice and clean, these were cleaned before storage and are odor free and nice, from a non-smoking home.