Unlisted glass insulator from Norway produced by TEKNOGLASS. It is not often that you find a "new" insulator here in Norway, as you can see in the photos, the shape is similar to the smaller CD 607 (on the left in the photo), but it differs in dimensions, half a centimeter higher and almost two centimeters wider at the bottom. Signed LB3, unlike LB2 which appears on CD 607. Nice find and hope for a new CD number, thank you for watching.