Bosc d’Anjou has added a photo to the pool:

Per Hasselberg (1850-1894) The Telephone (1884-85) Plaster. This sculpture group is part of the ceiling decoration of the Fürstenberg Gallery section of the Gothenburg Museum of Art, with classical-style allegories of modern subjects such as magnetism, steam, dynamite, electricity, the telephone and photography. In the medallion, a painting by Georg Pauli (1855-.1935) also entitled The Telephone (ca. 1884).

Source: Nordic Design flickr pool