Crystal Floral Etched Coasters Val St. Lambert of Belgium

I found these in a local shop. I have 6 but there are two of one design.

Val St. Lambert of Belgium was founded by Messieurs Kemlin and Lelievre in 1825. The company is still in operation. Pieces are often decorated with cut designs. Val St. Lambert was also a well-known maker of lamps from the 1930s and '40s.