Shown mark is a decoration studio mark of New York importer/distributor [b]Bawo&Dotter[/b].
Bawo&Dotter owned decoration studios in Bohemia twice, first between 1883 and 1913 and then again between 1930 and 1933. Taking the missing ‘Austria’ (which was of course only valid until 1918) and the decoration into account, I would say that your set is from the later period.