The piano light is kept in the strict formal language of art deco. the lamp arm can be moved back and forth and fixed in the respective position with a locking screw. the shade can be rotated through 360° and tilted via a joint on the arm. it can also be used as a wall or picture light. the piano lamp has an e14 socket. it is marked on the side of the lampshade with erpees patent, which was manufactured by the company robert pfäffle, schwenningen. Signed by maker,this piece has an attribution mark, i am sure that it is completely authentic 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.