Vintage Atelier Adèle Studio Photo, Vienna, address printed on reverse.
See additional scans below.
Adèle & Max & Wilhelm Perlmutter-Heilperin.
Adele Perlmutter-Heilperin and co-owned with her two brothers founded the Atelier Adele in Vienna in 1862.
The studio prospered and around 1890, the Atelier was named Photographer to the Imperial Court.