Prawn cocktail glasses/dishes. (Innsworth GL3)

4 prawn cocktail glasses/dishes. Each comprises a lower glass approx 3½ inches diameter * 3 ½ inches tall and an upper dish that fits in the top of the glass 4 ½ inches diameter at top * 2 inches tall. I assume that the cocktail goes in the top half and ice in the bottom to keep it al cool.