Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

I'd be very surprised if they were Jim, as the size of their shop is such that having an iron foundry in it too would be about impossible, if what I've seen and heard is any indication. There are perhaps still, but were certainly back in the day, a fair number of smaller dedicated foundries around that would likely be glad to run batches from Jensen's patterns from time to time.