In addition to their stock and made-to-order lines, PE Guerin also specializes in custom hardware. They can reproduce antique pieces from your samples or create new designs from your drawings. 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.