The next 2 pics show, on a suburban hillside street in Dunedin, what is a common early shape of 'mud' insulator made by the 'New Zealand Insulator Company'. We call them 'Knob Tops' and in the early days of hand turning, glaze experimentation, bottle kilns, differing temps/cooling times etc, - in other words individuality - was almost present in each insulator. We can line up 20 and they can all be different, whether it be shape or colouration. It was only in the later years of continuous kilns and more standardised manufacture that they became the same as the next one.

This pic shows 4 of these 'knob tops' with 2 coming out of the same kiln back in the 30's sometime, - the 2 with the colour showing!