Vintage Floral Queen Flat Lady Pepperell Sheet

White floral Queen flat sheet – I think it is iris – blue and grey there is also peach buds of some sort tag is faded but its a cotton/polyester blend; not sure of % 90 x 102 this looks is good condition consistent with age no obvious stains, marks, tears etc but there could be some marks as well, I don’t see any, but since its vintage, I’m throwing out the possibility that it could be there machine wash more info in comments