Finding forms, historic companty

My first few days in chicago were spent riding my bike around the city and exploring.  I stumbled upon this industrial site/company the other day and was intrigued with what I saw.  A. Finkl & Sons is the name of the company and they produce die steels, plastic mold steels, die casting tool steels and open-die forgings.  These large forms are then sold off to other manufactures in 18 different counties.  100% of their products are manufactured here in Chicago.
While taking photos I chatted with the security guard, whom informed be how the company started.  In 1879 German immigrant Anton Finkl founded the company for his development of a  new kind of chisel that could help separate and clean bricks that had been destroyed in the Chicago fire.  The history of this company the forms they produce were of great inspiration.