1930s/40s Glass Screw Top Dress Shirt Studs on Delightful Card

Circa 1930s / 1940s formal dress shirt studs. 
White glass textured 6mm square studs on gold tone metal backs.
Screw Tops printed on the card and they do, indeed, un screw.
On their wonderful original cards.
Some of the cards have a black drawing of a shirt, and others a gold drawing.
Found in an old warehouse, sonme are very clean, some a little less so.
I will sell the cleanest first.
Made in England by Lion Brand.