Fölzer twice applied for a grant from the German Archaeological Institute so that she could continue her work on Greek vases but was turned down because of her age. When she completed her studies, she was already 38. In the summer of 1906, she was offered employment as a researcher at the Provincial Museum in Trier. She wrote a number of short papers on Roman sites in the city and its surroundings, for example the excavations at Roden (Saar) (1907), a statue of Mars in Trier (1908), the Trier amphitheatre (1909), and a statue of Athena in Neumagen (1910).[4] In particular, from 1908 she worked on the origins and development of local terra sigillata pottery. On its publication in 1913, considerable attention was given to her work Die Bilderschüsseln der ostgallischen Sigillata-Manufakturen: Römische Keramik in Trier (Decorated Bowls from the East Gaulish Sigillata Manufactories: Roman Pottery in Trier).[6]
Despite the success of her book, she was passed over for a permanent management position at the Trier museum on both occasions she applied—in 1911 and again in 1918—with a man selected each time. With no further provision for her salary, she was forced to leave the museum on 30 March 1917. Until then, she had spent much of her time in Frankfurt, preparing the second volume of her silligata work. It was however never published.[4]
There is no further information about her career, although she may have become a schoolteacher. In 1927, she was registered as a private tutor in Berlin and likely died in 1937. As a Jew, her name was removed from the list of members of the German Archaeological Institute in 1938.[2][4]
