His ability to appeal to the sensibilities of colonial subjects through the works of his copper engravings, and vigils demonstrated the power of propaganda. After the War of Independence, Revere expanded his business to open an iron foundry in the North End of Boston making utilitarian cast iron products that were useful and widely consumed by the local populace. He also opened a copper mill which produced bells for churches, rolled copper for the hulls of wooden ships, along with copper bolts and spikes that were useful to Boston’s burgeoning ship industry. All of this demonstrated that Paul Revere was a man of many talents and a true revolutionary, and was therefore indispensable to Boston’s success in resisting the authority of the British Parliament, and King George