Large, heavy, soft white cotton with cotton/linen centre panels with woven double squares in a natural/gold colour . Probably for the cave bedroom (although there will be subtle neutrals in every room) ideal to introduce a little texture on the bed.
Pretty sure that I would have paid more than £1.50 GBP (all three!) in a brocante or specialist antique textile shop.
If you are reading this Lorraine, I might reveal my sources for a small fee
Label is faded and tells me nothing- they look very French country rustic.
British cushion covers are generally smaller , and of course our native pillow cases are oblong.