I doubt there will be much more information unfortunately. The shape is a variant typical of the period, but the decoration does not look top quality. In Bohemia, the large glass factories made blanks that they sold on to refiners who then got outworkers to apply the decoration, and there were many refiners with widely varying quality standards. Whole families used to decorate, from children to grandparents. Unfortunately, only the better and larger companies are documented to any extent.