- White, Unmarked (First Picture)
- White, stamped W53 X
- White, stamped W55
- Blue, Unmarked (Second Picture)
- Speckled Blue, Unmarked
- Speckled Blue, stamped W/57 (Third Picture)
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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...
