@boyfromn15 Instagram post (carousel) #Anvia#Hoogenvorst#1960#Unknown#DutchDesign#VintageLighting#FloorLamp#
Both the designer and maker are unknown.. However, it looks very similar to the designs of Hoogenvorst and Anvia. The style and construction suggests the lamp is from the 1950/60s.
The normal height is about 154cm but it can be 178cm.
The arm is 58cm long, the shade height is 28cm and the diameter is 26cm. - Gramho.com

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