This is a sign (pole number) used to identify utility poles erected along the Tokaido Line. It is approximately 40 years old or more. It has a rounded shape because it was attached to a cylindrical utility pole. There are four vertical holes at the top and bottom of the sign, and stainless steel bands were passed through these holes to secure it to the utility pole. The material is metal. Size (approx.) Width: 300mm Height: 200mm Thickness: 0.5mm Weight: 70g Thank you for viewing.