Hi ICON, I got this Composite Ramshorn insulator from a friend last week. It's in great condition and I plan on keeping it for my collection. This insulator is 6" long and unmarked. I'd like to learn more about the history of these types of insulators Can anyone tell me who the manufacturer was ? - what years this style of Ramshorn was manufactured ? - where were they were used in service ? and what the approx. value would be ? Thanks ! - Mark