Chris - is the pattern on your glasses Waterford, or is it different - it looks to have some similarity with Waterford, the main design of which was a four petal flower image, but I've had another slightly different version which wasn't Waterford.
Is your Lkny mark really a signature, or do you think it is an acid formed mark - it doesn't look to be formed with a stylus or sorts .......... perhaps Stuart had permission to use the designers name on this pattern permanently. I didn't see it on the op's glass either.
I've looked back at some earlier chat, and yes, I think 2632B is Waterford - although some care needed as although same cut pattern appears on several different shapes, each separate shape appears to have had a different factory pattern No.