ClassiCon is the only manufacturer licensed to produce the Tube light. With an original lamp, the ClassiCon logo can be found under the foot. The product also has an engraved serial number. Another feature of an original ClassiCon lamp is the signature of the designer Eileen Gray and a reference to Aram Designs Ltd.
Further information on the differences between an original Tube lamp and a copy can be found here: (ca. 7,0 MB)