Vintage JC Penneys Penn Prest Muslin Double Flat Sheet New in Package 81 x 104

I found a bunch of brand new, unused, vintage bedding at my Mom's house, during her recent move. This is another anomaly at my Mom's house. Why in the world would a person buy new sheets, in the 1970's, and never use them? Let alone, several of them? Maybe she was a sheet collector? Who knows? What I do know is, these would be perfect for the vintage look someone would be going for in their bedroom.

This one is a double size flat sheet, in 81 x 104 size. A really pretty retro flower pattern, that would look nice with some of my other sheets. They are Muslin permanent press, 50% cotton and 50% Polyester.

This is nice 70's bedding, still sealed in the original packaging. I've concluded they are from the 1970's (or older), because of the lack of an UPC on the packaging.

Thanks for looking!