Catalog number 3146 "compatzlocke", made by j.t. Kalmar in the early 1950s. height of the metal body: 25 cm 1 base e27 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.