CD 1055.2: Italy
3" X 3" (76mm X 76mm)
(around top) MIVA // 75 AV 875
Picture courtesy Don Mecklenborg |
2 7/8" x 3" (73mm X 76mm)
(around top) FLAMREX 83 AV875 5
Picture courtesy Don Mecklenborg |
These are spool insulators which are unthreaded and mount 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.