I think the attribution to Julius Muhlhaus is most likely. The leaf forms and highly coloured floral motifs are characteristic and usually credited to designer Hermann Pautsch of Arnsdorf, near Haida, though I have never seen documentary evidence for this. The floral band around the rim is also to be found on countless Muhlhaus pieces. An enormous range of similarly decorated vessels were made into the 20's and 30's and beyond. Re-issues of declining quality were produced certainly until the end of the 20th century- I saw some at the old Crystalex showrooms a decade ago. Your glass looks pretty early from what I can see, though the photos aren't very clear. It would be good to see the label clearly as it's flaring out in the CU’s. I assume there is no perceptible mark on the base of the foot, but try holding it upside down against the daylight and twist and turn just in case the light picks up the tiniest residue or ghost of an enamelled mark- these pieces often bore a "crossed scissors" mark and model/ decor numerals eg. 327/ 120 in yellow/ gold enamelling, but they rubbed off easily. There are many vases and bowls in this kind of décor but few wine vessels.