This stoneware table lamp is the work of Bo Borgström, a Swedish ceramist trained at Konstfack in Stockholm. Between 1955 and 1961 he ran his own studio, Svensk Form, in Viggbyholm just north of the capital, and pottery from those years carries his lowercase signature – here marked into the rim of the base as "bo-borgström". That dates the lamp most likely to the late 1950s, in the early, hands-on phase of his career.
The body is thrown, waisted in the middle and widening again towards a conical shoulder. The lower part is covered in a matte, dark reddish-brown glaze that keeps the throwing rings and small flecks in the clay clearly visible. The shoulder is finished in a pale, mottled glaze that breaks to rust orange along its edges, and the foot is left unglazed, showing the warm ochre of the raw stoneware. It is a typical studio-pottery contrast between glazed and bare clay, and it makes the shape read well even without a shade.
In 1961 Borgström moved on to glass as artistic director of Åseda Glasbruk, which makes his stoneware from the Viggbyholm years a short and fairly self-contained chapter in his work. Each piece was thrown and glazed by hand, so the glaze pattern on this lamp is its own and will not repeat on another.