Leopold and Irja Marjatta Rönnman, Helsinki, Finland.

Leopold Rönnman (born Gustav Adolf Rönnman) and his wife Irja Marjatta Rönnman, née Tuominen, ran the interior design shop Interiors during the Golden Age of Scandinavian design. The shop was located on Fredrikinkatu in Helsinki. Interiors had exclusive rights in the Finnish market to sell products from leading contemporary Danish, Swedish and Norwegian designers and manufacturers of furniture and luminaires. The little family business had close co-operation with designers, such as Hans J. Wegner, Hans-Agne Jakobsson and Björn Wiinblad. This co-operation developed into a deep friendship, allowing the Rönnmans to acquire exclusive objects into their personal apartment and summer house. Towards the end of the 1970s, Stockmann purchased the Interiors’ furniture rights and Interiors focused on lighting only. After Leopold passed away at the end of the 70s, Irja continued to carry out the business.

Hans-Agne Jakobsson was a Swedish interior architect and furniture designer, born in Havdhem on Gotland in 1919. He is primarily renowned for his elegant and modern lamp designs for his own company, Hans-Agne Jakobsson AB, Markaryd, during the 1950s and 1960s.
Jakobsson passed his journeyman's test as a cabinetmaker as an 18 yrs old and took later an architecture degree in Gothenburg. He worked as an industrial designer at General Motors and assisted Carl Malmsten and Werner West. In 1951, Jakobsson moved to Småland, where he founded his own lighting company, Hans-Agne Jakobsson AB. The company earned a well-spread recognition when it relocated to new premises in central Markaryd in 1956.
Brass lamps became something of the company's signature models, alongside the iconic chipboard lamps, manufactured by the subsidiary Ellysett from 1957 onwards. The company supplied both individuals and public spaces like churches, often involving chandeliers customized in various sizes. The glass shades were blown by Småland glassworks. The chandeliers were exported and sold throughout the Nordic region, Germany, Saudi Arabia, France, and Canada.
Hans-Agne Jakobsson's fixtures often feature a generous diffusion of light, frequently calming and subdued, where each component is meticulously crafted. In a feature from 1953, Hans-Agne Jakobsson himself described that he "believes that all parts of the fixture should garner interest from the designer". The shade's soft diffusion of light, the cord's strain relief, and the design of the ceiling cup were all crucial details in what would become Jakobsson's unique lighting philosophy.