- Blue, Unmarked, rounded edges X
- Blue, Unmarked, unglazed both ends, square ends X
- Grey-white, Incused KP 71 X
- Grey, Unmarked, (Matches quality of KP 74 4 U-2382)
- Grey, incused KP 75 6 X
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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...
