In Baguiers et Verres a Boire, Leon Darnis, on page 165 there is a goblet from Clichy. I think it has the same star cut and overlay foot but it's blue.
Also page 160 and 161 shows 4 items with white overlay. Similar feel and style to yours. Different makers but they are all graphic design white overlay on clear.
One is from Clichy with a similar star cut foot and white overlay on that one. The design of the overlay is also spare and graphic but different to yours. The stems on all of these is a different design to yours. They date from c.1840/50.
Oh ... Stem design match for your goblet on page 172 of book a goblet from Saint Louis. From that then,also a goblet,with star cut overlay foot but in blue and the star has many more points than yours. The design of the overlay is like yours but many more arches.
That said,none of the 4 white overlay versions shown are from Saint Louis.
If you have a UV light what colour does the clear glass give off under that? Is it an orangey salmon tint or yellow?
Looking through the Clichy book, a similar stem design but the way it's applied to the foot is different. That could be because the foot on that bowl is cupped upward though. Page 313.
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