Form-geblasener kobaltblauer Becher, Baccarat Oder St. Louis, Um 1830?

Title: 
Form-geblasener kobaltblauer Becher, Baccarat Oder St. Louis, Um 1830?
Author/Artist: 
Geiselberger, Siegmar.
Published In: 
Pressglas-Korrespondenz, no. 4, (Nov. 2012) pp. 1-10, ill.
Subjects: 
Bib ID: 
AI91290
Notes: 
Blue cup by the French factory.