This is a large pair of classic curtains: from Google I think they are "Golden Lily", Sanderson fabric to a William Morris design: very superior curtains which still fetch a good price, but the lining to these has suffered with sun and age and has a couple of tears or so and I have not been able to wash the stains out.
Dimensions: the fixed ruffs are 1.3m wide, the curtains each being 2.6m wide in total. They are 2.27metres long. As there is no hook arrangement, I imagine they would be hung on spike curtain hooks