As we know, some of Stuart's designs for drinking glasses had much longevity of production, and lasted until their demise.
How times change - for eons people wanted lead glass with a ring that resonated and descriptive terms such as 34% lead crystal, were a sign of high end guaranteed quality.
And now we see sales ploys of the Moser 'Copenhagen' pattern reading '........ecologically friendly lead-free crystal ...............' so no longer any point in flicking your glasses to impress the guests.

Could be wrong, but don't I recall that when we've had 'oroplastic' before, some of the frieze designs shown some form of Greek influence - so maybe not essential that the design is of a floral nature?