A piece of the Indiana map showing the relationship and proximity of Peru, Indiana and Fairmont, Indiana (home of King City Glass) and even Macy Indiana...see my earlier photo of the Macy, Indiana - Square D insulator. These cities were the product of the Geologic feature known as the Trenton Field which yield vast quantities of gas enticing literally a multitude of glass plants like Hemingray, Indiana Glass, Ball Brothers, King City Glass, Greentown Glass, and many, many more.