P.E. Guerin is the oldest decorative hardware firm in the United States, and the only metal foundry in New York City. The company was started in 1857 by French immigrant Pierre Emmanuel Guerin and has been at its current location on Jane Street in Greenwich Village since 1892.
Pierre Emmanuel Guerin was one of the pioneers in artistic metalwork in New York City, and examples of his production can still be found in various public buildings, parks and important residences throughout the city and the country.
The business was later passed on to Pierre’s son, Emmanuel Pierre Guerin, followed by his son’s wife Marguerita V. Guerin, and then his great nephew, Arthur C. Ward. Four generations later, the company remains a family business, now owned and directed by Pierre Emmanuel’s great grandnephew, Andrew F. Ward.
Here a short video showing the work that goes into their creations: It has also been called 'jewelry for the home'. Also, the Anthropologist has some wonderful pictures of the P. E. Guerin workshop and store.