A guitar made by Franz Hirsch for the Roger company before the war. Bears huge similarity to the Roger Stromlinie guitar from 1939. Both of them are also strikingly similar design-wise to the 1939 Gretsch Synchromatic model, down to a quite distinctive combination of specific hardware shape, binding and general styling with small alterations (a reference picture is attached here in the gallery).
According to H. Rittinger, this guitar was partially finished later, in the period between 1950-1953 by Olga Adelmann (a highly profilic maker and restorer who also went to become probably the first modern female master violin maker in the world). She worked with R. Rossmeisel at that time in the Berlin workshop.
