Nothing special, just a very boring and ordinary sort of cut, perhaps a few diamond shapes around it, and a couple of upwards cuts to give a little contrast and "finish" it. Nothing complex or particularly big. Completely unused, they all had their labels as well as the script on the base.
Would the labels hold a clue to the age? I didn't have a camera with me, sadly.
Perhaps is was the sherry glasses from a much larger suite, and it was just these that didn't get used?
(Michael likes his port in a wine glass size of glass, and volume. He can't be bothered with teeny tiny glasses that only hold enough for your teetotal maiden aunt's christmas "binge".)