Vintage Clear CNR Standard Glass Insulator from Canadian National Railway. This collectible was manufactured in Canada and is a perfect addition to any railway enthusiast's collection. The insulator is made of clear glass. It was used to insulate electrical wires on the railway's telegraph and telephone lines. This piece showcases the history of Canada's railway system and is a must-have for those who appreciate the country's transportation heritage. The insulator is in excellent vintage condition and measures approximately 4 inches in height and 2.75 inches in diameter. A unique and rare find for any collector or railway enthusiast.