This is a coupon for LUX Liquid or LUX Flakes. I cannot tell what year it is from, but it has the look of something from the 50's.

It states on the back that LUX Flakes are used in the bathroom for your nylons.
"Doubles the wear from every pair with gentle LUX Flakes care. It's like getting an extra pair with every pair you buy".

It has on the top a phrase "Lucky Lever Super-Sweepstakes Coupon".

The coupon has never been used, but it is old. 

Please ask if you have any questions.

Thanks for looking.