Stewart Iron has been a manufacturer of Iron Fencing since the 1860s. They've got a catalog on their site that is pretty in depth - it seems to me that if you wanted they type of fence or wanted to replicate your originals, this would be a great place to start.
Disclaimer: I have not contact them or purchased anything from them. But I did look at all the pretty pictures and made a bunch of wishes for my next house to have a larger yard.
![Very Happy :D](./images/smilies/icon/biggrin.gif)