A CEILING LAMP.
Nickel plated fittings. Partially frosted yellowish glass. Idman, first half of the 1950s. Height of the shade 38 cm.
"Beauty captured in glass - Gunnel Nyman - 100 years" The Finnish Glass Museum Riihimäki, page 99: Judging from her sketches, the lamp might be designed by Gunnel Nyman.