Designer: poul henningsen manufacturer: louis poulsen model: ph-4/3 table lamp, stamped 'patented'. Measurements: h: 52 / ø: 40 cm materials: burnished brass stand and top cover and opal glass shades. Continuous switch of bakelite. Condition: patinated and later fitted with opal glass. I have official proof of authenticity such as vintage catalogs, designer records, or other literature sources and take full responsibility for any authenticity issues arising from misattribution, up to 250v (europe/uk standard).the wiring of this item may be original and might need replacement, if not specified otherwise.