LG ELECTRIC LAMP PATENTED SGDG PARIS ENGINE SYSTEM M397 Here is one of the first electric lamp there is a gear on the left a gauge on the right, it bears the marking "LG electric lamp" and the glass is marked "La Semeuse, comptoir central d ' incandescence by gas Paris ". It is nature small gaps in the lace identify at the bottom There is probably a system a curiosity on the lamp that we do not control. Sold uncleaned unrestored. For the state thank you for detailing the photos.Do not hesitate to zoom in.The photos are an integral part of the description.Dimensions: Height: 35 cm Base diameter: 12 cm Glass diameter: 5 cm I remain at your disposal for any questions.