Zorro,,,You can not assume the because it is postwar that it must glow. It is currently [always has been] possible to get white material that does not glow.
Posts: 5610 | Location: N.Y. USA | Registered: 29 June 2002
Zorro, here is what I have read. If, a pre-war item that "normally" would NOT glow, is washed, post-war with a phosphate/phosphorus based laundry detergent it WILL glow, so yes, pre- war item can glow. Hope this helps, Regards, Leipzig