Australian 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...
These are all the same in shape, but have four different marking styles. Produced in various factories. 'F' indicates Freiburg factory in U-1502/3s, unsure of the significance of other markings
J1683 incused on top:
- F1 or FJ inside skirt in small font
- E10 inside skirt
- E11 inside skirt
- 13E inside skirt
- D13 inside skirt
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Incused 1683 on top:
- Incused E11 inside skirt
- Incused E12 inside skirt
- Incused E17 inside skirt
- Incused 13E inside skirt
- Incused 18 inside skirt
PHK incused on top:
- Incused 1A inside skirt
- Incused A31 inside skirt
- Incused A1 inside skirt
Unmarked top:
- 18 inside skirt
- 21 inside skirt
- E14 inside skirt
- F8 inside skirt
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