Early and Unusual Telegraph Insulators - Mt. This style is characterized by a metal hook encased in glass which, in turn, is encased in iron. The glass comes in a range of colors including clear, straw, green, cobalt blue, and amber.
Some colors are much scarcer than others.
The wood blocks are found with only a fraction of the insulators. The weather conditions were so severe at this location that it is amazing that any wood survived at all.