CD 1054: Australia
3" X 2 1/4" (76mm X 57)
(front top ring) A.G.M. L.T.0.035
(rear top ring) 5:
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.
Note: Original CD assignment from Glass Insulators From Outside North America published in 1993 by Marilyn Albers & N.R. Woodward.
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