After working in the early 1920s as Prokurist (authorized signatory) in Hans Neumann's advertising studio, Otto Löbl opened Reklameatelier Otto in January 1925 at Graben 29a (Trattnerhof 2) in Vienna's 1st district, which was one of the most successful commercial art studios in Austria before 1938. It mainly designed posters and publicity products, ranging from cinema, theatre and jazz concert posters to promotional material for food, fashion articles, pest control and the Vienna fair. His customers included companies like Hammerbrotwerke, Kathreiner, Meinl, Bären-Lacke, Suchard, Blum-Haas and Jawo and the Gerngross and Stafa department stores. By the end of 1928 he employed ten draughtsmen/women and artists including Robert Schmidt, Elisabeth Buzek, Erwin Kaltenbrunner, Kurt Schwarz and Margit Doppler. In 1933 Reklameatelier Otto moved to Riemergasse 6 in the 1st district, where the Löbl family also lived. As a member of the Jewish community, he was obliged to close the business after March 1938, and his trade licence was cancelled. On 21 May 1938, shortly after the Löbl family had fled from Austria to the USA, the Dorotheum auctioned their furniture and household items, paintings and books. Reklameatelier Otto was deleted from the commercial register in November 1939. The whereabouts of the furnishings from the studio and apartment are unknown today.