Find the series this weekend...

Though we don't know the color; we now know a size and denomination for ChipGuide; 150 x 100.

There is an old British movie where a woman is in a casino holding several plaques this size and shape in her hand walking in the casino and a man she knows walks up to her asking for one because he just lost everything he had and she handed him one. I always thought the casino was Dinant, but now thinking Knocke-sur-Mer since it is on the sea.