CD 1056: Brazil
3 1/4" X 3" (83mm X 76mm)
(front top ring) VFO (rear top ring) 78
Picture Courtesy Bob Berry |
This is a spool insulator which is unthreaded and mounts in a holder with a pin through the center. These were typically used to dead-end a power or communication line. Original CD assignment from Glass Insulators From Outside North America published in 1993 by Marilyn Albers & N.R. Woodward.