Pentarkus Table Lamp by Rosemarie & Rico Baltensweiler, Switzerland – 1960s Mid-century Swiss lighting design with architectural clarity and functional precision The Pentarkus table lamp was designed in the 1957 by Swiss duo Rosemarie and Rico Baltensweiler, known for their technically inventive and minimalist approach to lighting. This versatile model features a clean, geometric form and is constructed from enamelled white steel and chrome-plated steel elements, highlighting the duo’s commitment to industrial materials and refined functionality. Originally designed as an adjustable reading or desk lamp, the Pentarkus has since become an iconic collector’s piece, emblematic of Swiss modernism. The articulated arms and pivoting shade allow precise light direction, making it as useful today as it was at the time of its creation. Design Details: • Designers: Rosemarie & Rico Baltensweiler • Manufacturer: Baltensweiler (Switzerland) • Year: 1960s • Materials: Enamelled white steel, chrome-plated steel • Light source: Standard E27 socket • Features: Adjustable arm and head for directional lighting • Origin: Switzerland 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, European Plug (up to 250V).The wiring of this item may be original and might need replacement, if not specified otherwise.