Hi everyone, quiet in these parts lately. Hope business is good.

Can anyone give me idea about this mark on crystal?

The shop at which I volunteer received 8 beautiful glasses last week. I have tried to research in order to put a fair price on them.

8 lead crystal glasses about the size you would use for shrimp cocktail.
They ring like a bell. Very heavy. Square base and stem, round bowl, about 6" tall.
There is a mark on the bottom that I cannot find anywhere.
It is a simple script letter P. The design seems contemporary, 6 are perfect, 2 have small chips.
I cannot find anything like them anywhere. If I could identify the mark I would probably have better luck.
Any ideas?
THanks