An unusual and interesting blanket that I have just listed in my etsy shop.
As far as I can make out, in the early 20th century radon was the new health fad, thought to have restorative and curative properties. I believe this blanket reflects that time. The label is (was) perhaps, jumping on the bandwagon.
I note that Radium Hot Springs only notes its relaxing qualities now.
Wonder if this blanket was made for a hospital or sanitarium.......must try it to see if it will relieve my arthritis.