- Blue, unmarked
- Blue, unmarked and unglazed around top ring
- Blue, incused KP
- Blue, Incused KP
- Speckled blue, Incused KP
- Speckled blue, Incused KP rotated 180 degrees
- Grey-white, unmarked
-Grey-white, unmarked
- Grey-white, Incused KP 70
- Grey, Incused KP 73
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Australian Telegraph Insulators
RandomAustralian insulators from communications lines. There are several different kinds that look the same at a glance, but they are very different. This shows some of the many kinds of Australian insulator. There are pottery, porcelain, glass and even...
