LEV, L'Electro Verre 5 inch glass suspension type insulator from France. In the true definition of suspension, I doubt this one qualifiesas it was likely used as a dead-end. ..in 1959, Sediver was formed by the union of L'Electro Verre and Nord-Verre, with production kept at Saint-Yorre; the L'Electro Verre trademark was abandoned, and Sediver's insulators were marked EIV: Europeenne d'Isolateurs en Verre.